Having tile through out the unit is definitely a unique feature.
Having tile floors everywhere is especially common in southern Europe, Central and South America and Southern Asia where hot weather exists, but I think it will be a harder sell here because people love wood floors so much and it is softer and warmer to walk on.
Tile floors in a condo building will not tend to get too chilly because of the amount of heat absorbed by the concrete structure from the surrounding floors.
Maintanence is better with tile as it is doesn't scratch or dent like wood, but it will crack or chip with a hard impact, however as long as you have extra tiles repairs is much easier than wood and could be something you could do yourself.
It's hard to say whether to go with tile or wood. Do you intend on living here for a while or is it for investment? Wood is a safer choice, but tile could look just as good (or even better) if done right.
I almost bought a Unit K on a high floor in Market Wharf and think it is still a very nice building in a great location. The east side is not an area I would consider initially, but being across the street from SLM and so close to Loblaws, the waterfront, the ferry terminal, the Distillery District, and the Gardiner/Don Valley Parkway, it has a lot going.
The reasons I came so close in buying here is not just because of it's best location in the east side, but because of the clear west view to downtown (along the railway corridor), the clean design of the building, and its amenities. However King West area became my calling and I got a great deal.
Context is an excellent developer and I have bought a unit from them (in the Ideal Lofts in Little Italy) before and never had an issue. They maynot be not the most aggressive developers/builders in Toronto (like Freed and Lamb), but they have consistantly built excellent condos in Toronto for a while: 20 Niagara, Mozo, District Lofts, Tip Top Lofts, Spire, Radio City... and the list goes on.
Construction is going much faster than most developments downtown, and I believe Market Wharf would be a greatly positive addition to the neighborhood.
Price per sq.ft. is a bit high, but if you compare to a similar unit at the first phase tower at the Distillery District it is not that much more and you are so much closer to downtown.