Have tried all of these, best to worst -
1) Tikka Masala - Best of the batch, very good flavor, right amount of spiciness, etc....
2) Szechuan Chicken - this was pretty good, tasted as it should, but sometimes you'd get a chickeny chip that was too strong, and you'd get a burnt chicken taste.
3) Picanha - Meaty with salt, chili, and vinegar undertones. Bit too strong, you need to be in the mood for it.
4) Tzatziki - Meh, tasted very cucumbery to me. Definitely didn't taste like Greek diner type Tzatziki sauce.