I face NE, am on the 18th floor with a covered balcony, and have my tomatoes directly across from my bedroom window AC.

In my case, being up above the tree line, I get full sun all morning and being on the western corner of my building, I get some afternoon sun in summer in that corner, which is where I put my tomatoes. The downside is that the corner is very windy, so over the years, I've tried various things there to block the wind in lieu of me getting some plexiglass to put there. The poor shrubs there right now (a pee gee hydrangea and beautyberry) are sortof taking the brunt but have hung in there.

With respect to the AC... the past couple years I found that the hot air exhaust would eventually dessicate the plants directly across from it and would also encourage spider mites to live on them (these inturn yellowed the leaves even more and webbed the foliage and tomatoes). So this year I took one of my outdoor AC covers to hang just in front of the exhaust to divert it (it's not covering the AC but is about a foot in front). This has made a tremendous difference, although next year I think I'll find something bigger to go around the one side where my clematis is so the air isn't diverted there (it crisped up the clematis leaves).

I've never used the topsy turvey planters but a number of people who have posted here and elsewhere in the past have. I think it would probably work best with a dwarf plant or determinant but people have reported success with it.