Hi. It works well enough for me...but I'm not in a high-crime/theft area. I don't know if I would have bought it separately if I hadn't gotten it for free with the bike...check out the Lock Picking Lawyer on youtube , especially his video #868. I would probably have bought this if I hadn't gotten the Evelo lock.
I think this is very good bang for the buck and gives you almost 3' of locking length. Lock Picking Lawyer seemed to like it. I picked up 2 for less than the cost of 1 Kryptonite Keeper. Both have 3mm plates. Wirecutter gave the Keeper a top pick and don't really see anything that justifies paying twice as much for the Keeper:
We have two new Evelo Aurora Limited Edition ebikes arriving in September/October 2020. We have heard two locks are a better bet against ebike theft since time is of the essence for a thief, and defeating two locks will increase the time, effort and visibility/vulnerability in a theft attempt. My wife and I will primarily ride together, so we plan on chaining together the two bikes to a fixed object with a 68" ABUS Granit City Chain X-Plus 1060 lock (ABUS Protection Rating 15), and lock one or both ebikes to a fixed object with an ABUS Granit Extreme 59/180 U-Lock (ABUS Protection Rating 20). The two ABUS locks will be keyed alike. We're also going to discreetly mount under each rack an inexpensive motion alarm, the remote controlled SuperInk 2 Set Wireless Motorcycle Bicycle Bike Anti-Theft Burglar Vibration Security Alarm, to alert us and others of ebike movement. On top of all that we're going to explore ebike theft/damage insurance.