I bought an X-Arcade from gremlin, it's been superb.
I had an initial problem with one of the microswitches as it wasn't clicking properly. I emailed them and they responded the same day. A couple of days later I had a bag full of spare microswitches, and some buttons. I swapped over the switch and it's been fine.
I thought the aftersales service was superb, would definitely buy from them again.
The stick is still going strong, and I love it. Great stuff