I own 2 Flyxii mountain bikes (well, one from X-Goods, same owner), here is my point of view:
- Poor website. Slow, slow and slow. And slow.
- Poor communication. Not sure if that is due to the language barrier or limited technical skills. For sure, he would not reply appropriately to my technical questions.
- Best prices from all the Chiners. That's what got me
- Excellent shipping. Packaging is very robust. Took 10 days to be delivered in France. You can't beat that.
- Then quality is ... not great. Finishing is clearly not perfect. On one of the 2 frames the walls in the middle of the down tube are thin to the point you can flex them by pressing by hand. That make it a very light frame. It is OK with me, this frame is for my wife who does very gentle rides, on the road only, 30 km/h max
It won't brake. The other frame is rock solid (but 200 g heavier), and I have abused it over engaged All Mountain trails, way beyond what normal people do (marathon races with 2400+ meters climb and as much down hill).
All that to say that even though I have had no issue (2 frames, 2 seatposts, 2 forks, 2 headsets) I would not recommend them for light road frames or anything that requires precision (wheels). Actually I was on the market for wheels and I went to CarbonSpeed that I trust a lot more.
I would probably do the same again and buy the frames from Flyxii. You can't beat the price. I love the geometry of my FR-202, I picked a big size so that it would get a long top tube to match with a short stem. Mounted with a 110 mm fork, the head angle is nicely slack.
But again, would I buy a delicate road bike frame from them? Absolutely not.
EDIT: one thing comes back to me (that's almost 2 years ago). Flyxii is not entirely honest. He uses multiple ebay accounts and rotates on them (I have watched him do that several times). Let me explain you the trick
You collect 100 good feedbacks, then 10 bad reviews come. Leave this account on standby over 12 month, use another one. 12 month later, the negative comments are gone but you still have 110 reviews, so as soon as you get 1 good review you have an account with 100% positive and a 111 count. I have seen flyxii do that on ebay, he rotates accounts to always be >95% positive and still have a large number of reviews.
EDIT again: I have just checked and it's easy to check. Flyxii's current ebay account is 88bike. He has 100% positive, almost 15000 total reviews. Impressive. But if you look closer, there is less then 100 reviews this year and there is actually negative comments, over a year ago. Scroll down this page and see by yourself
http://feedback.ebay.fr/ws/eBayISAPI.dll?ViewFeedback2&ftab=FeedbackAsSeller&userid=88bike&iid=361350054392&de=off&interval=0&items=200