If you dont mind me asking what kinda problems. Like bad products?
It's kind of frowned upon to diss a registered vender here, but...uh...yeah.
Their Rivas are notorious for problems. It's hit or miss. Sometimes you get a set that works well, more often they don't. Their shipping was fast, and return policy great, (it would have to be REALLY!), so I took the gamble a few times. But recently got a SS starter set, that fried six atties on me. (the two that came in the kit, then two replacements, then a couple IKV cannons, then the Rivas themselves BOTH died the same day. ( they wouldn't quit firing. I had to remove the attie, and burnt myself in the process!)That's it for me as far as LF is concerned.
The chargers fall apart/ malfunction relatively quickly also.
They are recommended here a lot, low pricing and all, but seriously... "Buyer Beware" does, in fact, apply!