Thanks for the feedback. I really don't know why I am having so many issues/problems making decisions for this bathroom. Perhaps because we started serious DIY renovations on this 70's house 6 years ago, were going to add an addition for this BR and had hired and started to pay a design/builder who we basically fired after receiving an estimate of $70K to frame a 210sq ft addition! I think I went through a grieving process at losing my dream bathroom (life intervened, and we ended up helping our son buy his first home), and it took me over a year to actually get this project moving. So, good news, I just handed over my Visa, and I'm getting the Riobel system in brushed nickel with thermostatic valve and volume control! Emco also carry the Moen Iso line, so I'm getting all my BR accessories in brushed nickel too at less than the HD price in chrome, so I'm one happy camper. I went to a plumbing supply store, and asked them to give me a quote to compare apples to apples...so she knew without my saying so, that I had gone to another showroom. When I rec'd the quote this morning, it was lower for all items except the main valve, which was higher by $22. I told her it was good, except for the one valve, and she met that price. I wasn't pushy or demanding, just honest. I hope to be able to share that the Riobel system works great! Supposed to be very good, and I like the idea that it is a Canadian company, made in Canada, and I don't have to worry about shipping, duty and having to deal with a foreign company if problems occured... Glad I didn't have to give up volume control, my Brushed Nickel finish (which in some lines was going to be exorbitant), or my thermostatic valve! On to the next..gotta pick between two colours of my limestone lookalike porcelain tile...

Also have the grohe. I was talked into the thermostatic by the sales person. It's okay, but I could have lived without it. She described it as a must have, but I honestly don't see the big whoopee. Also, I found I couldn't get really cold water or super hot water out of my faucet once it was installed. Maybe this was an installation error, but we like freezing showers in the summer and super hot baths in winter.

sstrazisar, I would put the valve in the wall where I plan on putting the body sprays that connects to the bedroom. Directly behind this wall is a built in cabinet with doors so I can hide the access panel. See attached for a picture of a quick Sketchup model I did the other day (placement of stuff is just temporary, just wanted a quick idea of what it will look like). I have read reviews about the DTV Prompt valve being noisy, which is another concern, but hopefully I would be able to sound proof within the wall as well as within that built in cabinet unit.

HU- I don't want to "permanently fix the temperature." Only one of the three showers in my house is currently working. Not everyone in my household likes the shower water at the same temperature. The diverter integrated with volume control will work only with two outlets. If I wanted three outlets (e.g.. jet shower head, handheld, and rain head), I would need to have the diverter separated from volume control, as in my primary shower (see photo below). I think Axor, Hansgrohe, and Dornbracht may be the only suppliers available to me that offer a two-way diverter integrated with volume control. With this configuration, I need only two levers -- one for thermostatic control and one for diverter / volume control. Actually, the wannabe-plumber (GC's friend / "employee") messed up in my primary shower when installing the rough-ins -- I will need to rip out tile and redo to get hot water. It was my designer's idea to swap the tub and shower from their original positions, which landed the shower valves and heads on exterior walls (the shower area is a "bump out."). The architect had proposed a neoangle shower in the primary bathroom -- but that was nixed by the GC and designer.