limo crisis

okay, so i am just about 3 months away and we booked our limos back in march so we would have nothing to worry about. problem is we booked m&v and now all i am reading about is horrible reviews about them. i am freaking out. i wasn't a member of liw at the time but my RH recommended them so we went with it. we are supposed to be paying about 1800 for 2 chrysler 300 and one bentley plus 2 town cars after the reception and one to take us to the airport for our HM. we already put down 300. is it worth eating the 300 bucks and finding another company? was it a good price that i even got? help, i'm clueless!! i keep reading about sir oliver but don't know where they're located or where else to even look. i really want the chryslers and an antique car. one limo will need to go to islip, one to port jeff and then the church is in selden, the reception out in the vineyards. any recommendations for limo companies between the islip and port jeff area? TIA