Happy to share my perspective...
Full disclosure - I purchased a unit in Phase II in February 2007 and am in the process of purchasing a unit in Phase I at this time. The reason I'm purchasing in Phase I is because I don't want to wait until 2011 which is when I expect the Phase II unit to be ready.
I have had no dealings with the builder with respect to other buildings.
At the end of the day, I assume you are interested in WHC because of the general location so I won't comment on the area. I love this area (previously lived in the SouthBeach Townhomes south of the TipTop building but moved out becasue I wanted more space and more natural light + had some concerns with how the property was being managed) as it's very close to the water yet much quieter than the Queen's Quay / Bay / York area in the summer in my opinion.
I believe that the development offers good value for the dollar vs. other buildings in the area based on the level of finishings that are standard in these suites vs. other buildings in the area as well as the fact that most suites are priced including a parking and a locker (worth a combined $28,500 based on the price they are currently charging if you want additional parking spaces or lockers or are buying a smaller unit without parking.
I like the fact the the builder has completed some other nice buildings around town. I also like the fact that the average unit seems to be a little larger in this development. By that I mean that there are fewer 450-500 square foot units and seem to be many more that are in the 700-1000 square foot range (with a decent number of 1400-1600 square foot units too.)
My dealings with the sales reps in the office have been average - similar to my dealings with some other sales offices. However, my dealings with their lawyer have been very good. I find him to be very responsive and happy to walk through any questions I have. He has been with them for quite some time and really appears to be happy to help clients. I view the developer as having a good balance between being big enough to have developed other projects successfully and small enough where you don't feel you are 1 client in 10,000.
Prior to purchasing my Phase II unit, I had my real estate agent take me into a few other buildings that they had recently finished and was impressed with the overall feel of the buildings as well as the quality in the suites.
When I purchased my unit in Phase II, the sales office extended my 10 day cooling off period for me twice. I'm not sure if this is standard practice but I certainly appreciated it.
Hope this helps - please feel free to PM me or respond to this if you have any other specific questions.