Never heard of them. Are they local or a chain?
Can't see it screwing up the whole vacation. Worst case is you get another car at another rental. Yeah, you might pay a bit more, but it won't ruin a whole vacation. It's just a car rental.
(shrug) - A lot of the vacation is a *very* tight budget and the timing of picking up and dropping people off on the path to our destination - who are also on their way somewhere else.
And the need for a large vehicle. I've found that at the last minute - you can't always rely on any place having one on hand.
We'd still have it - but it would cost considerably more and mess up other people's agendas.