Limo questions

Ok, so fh is off today...I am trying to take full advantage of his time. I wanted to get a few things done today. So aside from invitation shopping, we may make our way to limos. So my question is this: Has any one used Serentiy?
Or does any one have any other suggestions? FH wants a stretch escalade for the guys and a cts-car for the girls. This is more his thing I think!! TIA!

ETA: When is a good time to book-at the latest?

Sir Oliver!

All Star Limo (they are a vender here) a little pricy but really good and their cars are in great condition.

Also ABC Limo (800 ABC LIMO or 888 ABC LIMO -- i don't really remember off hand) they are very reasonable.