I tracked down someone who bought one of these through ebay feedback and they had good things to say about it so I bought one and just installed it and it's awesome. I'm not a technical person in this field so I don't know what all to say about it as a review.

It took about three hours to install and it came with all the tools needed to install it. It is a lot more powerful than I expected, and it's faster than I want to go at full throttle. The battery case is 25 pounds but it pops on and off with the turn of a key which is great so I can remove it quickly to lift my bike onto public transit bike racks.

The brake levers kill the motor when you put any pressure on them. The wheel was true. Everything mounted up just fine. The light and horn are nice. It zooms right along.

If you ride your bike up and down stairs, on railroad ties, or heavy off road stuff, in my opinion the rack/battery mount is not strong enough. It's a bit wobbly when you jerk it around.

There are two key positions for "on" and one for "off" and I don't know what the difference between the two "on" positions is. Any ideas?

There are two gauges on top of the light and I'm going to guess one is for battery level but I have no idea what the other is. Any ideas?

It shipped UPS and the box weighed 61 pounds. It took 6 days to get here.

I had twist shifters but rarely used them so I'm not worried about them being slightly harder to use. The new brake levers are long enough that there is no extra reaching of fingers to grab the brake levers.

It is rain proof, by the way. The seller, the manufacturer and the manual it came with all say it will work in the rain and I could definitely see where they sealed parts to make them rain proof.

I'm very happy with it and I'm glad I won't have to eat so much anymore! People complain about the gas prices, but eating extra calories every day to fuel my bike adds up. I'm happy to answer any questions if I know the answers to them, or take extra pictures.