I can see that I am in a minority of what seems like one here but I really don't like Pastiche.
We have had a number of not very good meals in so much noise that we couldn't talk to our friends. We have subsequently avoided the place. Recently, though, we were invited to a birthday meal there and so gave it another go.
Initially I was really, really impressed. You completed a menu selection online which I've never seen anywhere before. I thought that would be brilliant because everyone would get served at the same time and we wouldn't have to remember what we'd chosen.
On the evening they hadn't even set enough places. Various dishes never arrived (though appeared in the bill) some people had finished eating by the time other people were served, we got random duplication of side dishes and the staff were astonishing: "Oh, d'you still want it?" they asked my friend who despite asking several times, had failed to receive her food!
The meals were ok. Some cold, mine not. The acoustics are so crap that you could only talk to the person sitting next to you.
Nobody argued about the bill because it was a birthday. We all left, feeling good to be outside and resolving never, ever to go back there. Judging by the staff we met, I'm sure they don't care in the slightest.