Well made and unique drinks are the focus at Tender. I usually come back to The Van Buren, which has been on the menu since day 1. They've divided the menu by spirit forward, sweet, and light/refreshing drinks...it might be the most sensible drink menu I've ever seen. There's also a list of standard cocktails that includes quite a few tiki drinks. The Jet Pilot comes in a cored pineapple with a flaming lime cup of 151...pretty impressive for $11. As our bartender last night pointed out, there really isn't anyone in PGH doing tiki drinks, but Tender does them very well, in an albeit classier environment.
While I never tried the original food menu, the new burger/snacks menu seems like a better fit. Try the tots. The architecture and decor is polished and makes you want to dress up a bit. With no standing and not too many seats, I've always had quick and friendly service, and seem to learn or try something new every time I come.