Terrible.
At this very moment I am currently cursing my People's Indian Restaurant's lunch. I ordered it with a a friend at work and while the ordering process was fairly simple (grub-hub) and it arrived in a reasonable amount of time the quality of the meal was seriously below standard.
I love Indian food and one thing I love about it is the complexity of the flavors. This was flat, one note. A earlier review mentioned his tikka masala reminiscent of Campbells tomato soup - well add the butter chicken to that experience.
The chicken had that metallic like taste you get from microwaved meat which did compliment the bland taste of the food - hey, if nothing, they are consistent in how awful the meal was prepared.
Right now, I am sitting at my desk and my body is actively fighting indigestion. Yep, this place is terrible. 4 star average? Wow, that is shocking... of the countless Indian meals I have had this is by far the worst.
Update: 8 hours later and still feel sick from this meal. Ugh. Never again.