Mine was ok too, received it in late fall last year, queries were answered fairly quick. Have started re-using the bike again lately and all still good with the exception of the battery which seems to use up quickly. Last week battery was below 40%, I did not bother to plug it in, today it was empty. Loaded battery fully today, went on a 10k ride of which maybe 2k uphill. At the end of the ride, it said it‘s below 50%. That‘s disappointing as I bought the max capacity of battery which was available. Maybe there is a trick to make it last longer? Other than that, I am happy with the product!