I have littery just installed a 48v 500w front hub kit from them with a 48v10A Life4PO battery with case and charger.
Total price was $702 said 3-5 weeks shipping was delivered to me in 10 days i was very happy.
No instructions but it was straight forward.
get your controller diagram and label the wires double checking them, decide on your setup i.e. throttle only, peddal assist, cruise, speed limiter etc etc.
The kit they sell is pretty much the same as everyone else they are mass produced over there and its down to who you want to purchase from. I went for the BAFANG as they see to have a good reputation alot of places are starting to like the new Q series, but they are newer so dont know about the relability. Magpie seem very good too. Think alot about battery and controller location. I have a full suspension bike with a funny frame getting a rear rack was difficult.
The LifePO4 battery/charger is better than most setups as the charge can be plugged in and left to its own accord you can't over charge or damage the cells due to the BMS and charge working together. You will need to make a lead from the battery to the controller (connectors included in the kit but not the wires, ask them they may make you one). You will need a volt meter for the installation as they wired the battery the wrong way round which stumpped me for ages, it was only due to the help of the people in this forums that i got it resolved. I am now more than happy with the bike and setup. I have sold the car and using the bike saving me $400 a month.
Journey is 3 miles and has alot of hills, so far my journey is 10-15mins before it was 20-25mins. Top speed is about 18mph on a flat and i weigh 15stone. dont know about the range yet this is only the 2nd day of my installation.
BMS support was very helpful, both on emails and online chats; you just have to remember the time difference when asking questions I forgot about this and it was often 2-3AM in the morning to them. Shipping is costly but your purchasing some heavy stuff and bulky stuff so paying £150 dolllars for something to travel halfway round the world is a fair price in my opinion.
Order extra stuff like throttle controllers and connectors, they only charged a couple of extra dollars for most of the extras; I got a few as spares and also different ones so that I could see which fits my bike/setup and use the best. The full throttle controller with LED is excellent! Dont forget to order some fork tension arms they are a must for any setup.
Overall I would use again as the cost savings are huge; I got a more powerful system, double battery capacity for half the price of the same kit here in the uk; so it was worth the gamble of using them.
Simon