A few years ago - Henshaw ( Christopher on here ) was kind enough to give an open invite to RIBnobbers to have a tour of their operation . I took him up on it as they made the tubes for my oldboat ( brillianltly I may add ! ) and so was very lucky to see what they do , how they do it etc .....
Great attention to details and I'd not hesiate to use them .
Likewise when I popped a tube RIBSHOP sorted it very well - so well even I mananged to forget the repair was there and likewise good quality work which I'd use again in a flash.
These are my only two direct experiances , but I have never heard a bad word ( and bad news travels ! ) about anyone else mentioned on here