Use the search to see all of the threads posted about this. I think the consensus was that it's a pretty good thing--but just not very many orders flowing through yet.
If you're looking for an easy and inexpensive way to send wires this is a very good option. If you want big rebates and incoming volume it's not a good fit.
IMHO it works best if you have decided traditional wire services are too expensive and want out but would still like a convenient way to relay out-of-town orders.
If you stay with one or more of the services and continue to do all your sending through them (to get rebates and avoid low sending fees) you shouldn't expect clearRoot to be a big a source of incoming wires. They don't gather orders and they don't accept OG members (the no rebate thing keeps them out anyway) so it's a case of "you get out of it what you put into it" - the orders have to come from member florists!
If you like the idea of a more co-operative system I think it's a great fit and Jeff (the founder) is a first class guy. He and his wife are real florists and care very deeply about the business.