I've had the X2 for a year now and it's been awesome. Never skipped a beat. It has an amazing blend of components at a great price and Nancy was absolutely fantastic to deal with. The shipping was good and arrived safe and sound. I have done around 300km on my board and I weigh 110-115kg, but the board doesn't care. The motors are very quiet compared to some friends boards and they have never overheated or failed. I live on a very steep and long 12% grade hill and gun it to and from work every day and the board is the same as when I got it. The battery seems to be good quality.
I would recommend everyone check all bolts on receivership of their board but that applies to any brand.
TL;DR: Great board, great price, great service, great reliability. Very happy! Thanks Nancy!