This makes biking infinitely more fun and easier. I really love this and even got the bigger battery. I bike more now than I ever did. It’s totally worth it. However, it’s not perfect. The batter display and the actual lights on the battery vary greatly in how much battery life is left, which I find really confusing. The battery itself shows lots of range but the display says it’s almost empty and it’ll die, but the battery says there’s still lots of life… I also found that the battery (15km range one) is starting to die before 15km and I’ve only really used it for one season. My display also died just after 1 year, like weeks after, and I had to pay for a new one.