Benchmark was released very recently, so it's unlikely you'll get a ton of opinions. Reports on the previous generation of Bosch ovens on this forum, however, has been positive. It's certainly a sharp-looking design. One good thing is that from the picture, it appears that the top speed oven and the bottom main oven have separate control boards. If one goes down, you don't lose the other.

We have an Elux Wave Touch single wall oven 3+ years old. (I know you asked about double ovens) It's an okay oven. The two racks roll out very nicely. The timer is plenty loud for us. Things do not brown evenly, although it heats evenly. (I tested it with oven thermometers so it won't do any good to complain to Elux) The electronics cooling fan runs from the minute the oven is engaged, until it cools down. Fan is noisy and blows hot air into the kitchen. Ugh... I guess they all do that, nowadays. Over the holidays, it was run on 425° to 450° for a little over an hour, and the hidden heating element left its mark....the faded outline. I don't know if other ovens will do that after an hour or hour-and-a-half max at high heat, but I am not impressed. Or pleased. Grrrrrrrrr..... It's a bit of a nasty mess in the pic below, but you should have seen it BEFORE I hand-scrubbed it . . . because one does not dare run the self-clean feature in any of these ovens too often for running the risk of killing the computer inside them. Nice thing is the door completely comes off this oven, which made the cleaning a lot easier. I didn't even have to have hubby help me remove it.

The received advice on the Advantium drawer was to make it as convenient as possible, though it probably is less important with the separate microwave. The glass tray for microwaving should not be stored high, and it does better flat than vertical, but since I'm pretty sure it's only for microwaving, you could put it in a less accessible place. Make sure you measure the trays. I think mine are 16" in diameter. They're definitely wider than my cookie sheets. Re flush integration, it's not that it's not functional when done that way. It's that it's really annoying. Because, definitionally, the door is stopped at 90°, or maybe as much as 100° if there's a big enough gap. If you're used to Euro cabinets that have that kind of limitation in the hinge, and are used to it, it might not bother you. I paid up big time to have step hinges so my cabinet doors would open fully. I don't often open my oven door (Gaggenau, side opening) more than about 135°, but when there's a big, heavy roaster or something, where one wants the strength of rigid bent elbows, it's a breeze with the door out of the way. Rolling racks were invented to rectify some of the looks issues that come with drop doors that cover the whole oven, or side doors that don't open the whole way, but there's nothing more convenient than just being able to reach into the oven and lift out your pot. Having one oven flush and the other proud, in a stack, will look weird. Different handles, colors of stainless and control panels, especially when there's at least an inch of trim between, looks fine. Different ovens of different sizes and different functions. But one innie and one outie will push it over the top, in my opinion. You might want to post another thread for info about the Bosch. Does the broiling element get used during speed cook? It may only have 9 pre-sets, but I can't imagine that it'll only do nine combinations. With the Advantium, if it's at all like mine, there are a handful of presets, but you can customize them, and you can also input your own. There's a steep learning curve, so modifying is worthwhile. Find something that sounds similar to what you want to do and change the time, or the amount of convection heat or whatever, and keep experimenting until you get just what you want.

I had the very similar issues to @seb225. The service tech made multiple visits and ended up replacing pretty much every electronic component in the oven. After being unable to fix it, and at least 15 phone calls on my part, Bosch finally authorized a replacement oven. When the new oven arrived, the model number had a either a /1 or /2 at the end, indicating an update from the original. After using it for a while, it was time to descale the appliance again. Running the cycle, Bosch had actually changed how it worked (removing one step, IIRC), but the end result was the same, and the oven never properly finished it's descaling cycle. On both the original and replacement, this manifested itself with a strange behavior. When you were using the oven in any of the steam modes, and you opened and closed the oven door, the display would return to the clock, as if it were off. The reality was that the oven was still running, but there was no indication on the display. The only way to fix this would be to go to the breaker panel, turn the oven off and then back on, and it would work fine (while still prompting you to descale it), until you ran the next clean or descale cycle, when the behavior would reappear. After a couple of months of this, and the oven believing that it had not been descaled, it entered a steam lock-out mode, which disabled all steam modes (including clean and descale) until you descaled the oven, rendering it pretty useless. After a few more tech visits and multiple phone calls, Bosch authorized a refund, I replaced both Bosch ovens with the Wolf E series convection and convection steam ovens, and couldn't be happier. One nice bonus is that the Bosch had to be descaled after every ~4-6 hours or so of use, and the Wolf is ~36-42 hours of use.