I'm not up on the current models and current features. I have found the Gaggenau to be infinitely useful and totally reliable. I don't need it to have extra features like a broiler. I think the Miele has a broiler? That's a feature, which, if it's offered, is so that you can have a full featured oven and not need a second one just for a broiler. My regular Gaggenau oven has a far far better broiler than any offered in a combi-steam or speed oven, which are both convection only ovens at heart.
I did my kitchen about six years ago and while there are new and different things, there aren't so many that it would dissuade me from the Gaggenau ovens if for no other reason than the way they operate. I like the simplicity of the knobs. For the actual cooking, you turn a temperature knob and a function knob. On the combi- the latter gives you various steam levels with convection, as well as special settings. On the regular oven, it's each of the modes. For most cooking that's all you need. The other functions are a little more involved but still easy. Gaggenau is also the best for accuracy. Miele is in the same neighborhood, but the controls would drive me crazy. Wolf would be there too if it weren't for the ongoing issues with the enamel, which may or may not have been solve.
I also love the knob on the Gaggenau induction, but that's more of a toy. Other than the fact that my fingers can run cold in the kitchen, there isn't really any operational advantage to it.
If you truly have an unlimited budget, you should look into the Irinox Freddy, which is a home blast chiller. There's also a vacuum sealing drawer called Zero. Now that everyone has some kind of steam oven, the home blast chiller is the new ne plus ultra.
As to the floors, given that they're already there, there's no reason not to use them. Washing machines and dishwashers, because of their large water volume, are the worst flooding culprits. And hot water tanks, but since you have a basement, I'm guessing yours is down there. At some point, something will break. Arm yourself now. Compared to your remodel, a large tank style shop vacuum that will suck up water and a couple of big box fans are cheap. Stash them somewhere out of the way but easy to get to, and dust them a couple times a year. Know where all your valves are, and consider installing a water leak alarm.
When it happens, shut the valves and immediately, get the shop vac and pull up as much water as you can. It's stronger than towels. Then open some windows and set up the fans so you can get cross drafts, even if the weather is bad, so long as it's not dangerously so. Drying out the wood as fast as possible will keep it from warping, and will go a long way toward preventing mold. After a few months, you might get a mold expert in with a sniffer to make sure nothing's growing (ask the expert for the correct timing, my few months is a guess). I say that because you have small children.
Also, do yourself a favor and actually look at your water lines and drains now and then, and inspect the backs and bottoms of cupboards, to make sure you don't have small leaks. And get your drains flushed now and then, even if you don't have root infiltrations, to make sure clogs that will become backups aren't growing.
How much of all that you do is totally up to you. Most people get by just on winging it. These are just steps that can set aside worries, if you still have any.
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