Do you mind linking me your kit so I can take a look? I'm on the site now and something like thisYep, i'm very pleased with the two kits I bought from Yosepower UK (not Aliexpress and both delivered in 3 days). I bought one kit without a battery and share one on the basis that I can only ride one bike at once!
I effectively got two bikes kitted out for the price I would pay for one elsewhere. However, @Woosh makes some valid points. The over-long cables are a bit of a pain but I was able to overcome this with some "creative" routing without cutting them. It does help to hide them if your bike is black! The long motor cable is perhaps the worst part if you get a puncture. If you are of a practical nature and don't mind taking time over it a decent job is possible.
Product support is very good but it is email from China so not as good as a UK supplier.
It's too early to say how the good the battery is (bought in March and getting to nearly 600 miles between the two kits), but I'm not expecting too much bearing in mind the price.
https://www.yosepower.co.uk/products/e-bike-conversion-kit-36v250w-front-motor-36v15-6ah-hl-plus-batteryhttps://www.yosepower.co.uk/products/e-bike-conversion-kit-36v250w-front-motor-36v15-6ah-hl-plus-battery
looks great.