Just had an interesting experience with Spa Cycles. I ordered some Rigida Chrina on XT in July. They eventually turned up after the delivery company made several attempts to deliver them, but when I got them out of the box they were far from true. I think this is probably because the delivery company mishandled them.
Anyway, on contacting Spa Cycles, they said they'd ring me back to arrange a pick up time and send me a new set of wheels. They never rang back. When I rang again to remind them they once more promised to ring back to pick up the wheels and then once again didn't call back.
So I thought 'sod it' and took my wheels to my LBS who trued them up in no time. I paid about 15 quid for them to be trued. I was a little miffed, but the wheels are bombproof and work fine now, and I accepted that they probably got mashed up on their way to me from Spa Cycles. This all happened in July/August.
About three weeks ago the phone rang, and it was Spa Cycles, saying that they had a spare set of wheels for me and when would I like them delivered. I told them I'd had the original wheels fixed two months previously. They immediately offered to pay for the cost of having them trued, but as I couldn't find the receipt, they sent me a load of inner tubes instead. This is fair enough IMO.
So, I don't think that Spa Cycles are bad quality wise, but they're not very organized!