On another forum someone said, "if you have never had or ridden an ebike, then you will probably be happy with whatever bike you buy, however as you look into them more and more, and experience using it, you will prpbably want or wish that the one you bought had has other accessories or motors, or whatever". In other words, the more you use it, the more you read up on ebikes and become experienced, then of course you would want/wish you had been able to buy something better. This of course applies to any bike user, just ask anyone on this forum who rides a normal bike .
I have no doubt you will enjoy the bike whichever one you decide to buy, and an awful lot of ebikes are made in china but nowadays they are made according to the sellers specifications. Therefore don't be put off buying a chinese manufactured bike.
And you never know, you may get the bug and want to go further than just your commute to work and back. I hope you get the bike you want.