So how would you guys describe the area around NXT?
Like the poster above stated, it's a fairly quiet and sleepy neighborhood. You'll have to take the streetcar (or your own car) to do any shopping, with the exception of the convenience store, and gas station (and the Cheese Boutique!). The streetcar (501) I take every morning from Windermere to Spadina takes about 25 minutes to reach downtown, and the trip back at 5:30 takes a bit longer at around 40 minutes on average. There is a bus (77) that runs infrequently (30 minutes in off hours, 15 minutes in peak) that will take you north to Bloor St and Runnymede Stn. That said, Roncesvalles is only a twenty minute walk, and less than five by streetcar. There are numerous delis, bakeries, coffee shops, and markets. Bloor West is a similar distance, and has many of same offerings.
You're surrounded by parks, bike paths, and trails in the area. Since you're immediately off of the beach, you can bike to downtown just as fast as you can take the streetcar, all while avoiding traffic most of the way. There's plenty to explore to, High Park, Humber Bay, Humber South, Gzowski Park..
It's a very pet friendly neighborhood, and you may think twice about moving here if you hate dogs. They're literally everywhere, but most dog owners are well behaved and responsible. And of course, Humber Bay has an off-leash area opening this summer, High Park has the huge (and sometimes insane) dog hill, and Rennie Park has a fairly quiet off leash area. Numerous dog owners will let their pets run free on the beach, or non-designated parks though, so beware.
Yep, that about wraps it up for me.
Update: And just to comment on my post above about the property on Southport. I've noticed that workers have been tearing down the boards to a few of the buildings in the lot (the Shoppers, and another). Still not sure what they're up to, but I certainly wouldn't mind the retail outlets to move back in.