I've never had problems when ordering from rc market.
I've had more problems with US/ UK shops (except stormer) than with RC market.
RC market at least bothers to answer mails.
From the US shops I usually get no reply back or after 1 week the we dont ship oversees answer. The 1 UK shop I dared ordering didnt bother telling me not everything was in stock untill I asked him after 2 weeks, after another week I changed the order, no answer and I finally cancelled the order (been going on a month) yesterday upon I received an almost instant email it was going out that same day....
So yes, I'll order from RC market again if he keeps up his service.