Current Huawei owner
I have a P10 plus and don't see any problems with some of the features complained about. The EMUI is no better or worse than other Android skins or native Android. I don't have any problems using it or things that annoy me about it.
I don't have a problem with the fingerprint sensor where it is either. Never had a problem unlocking or dropping the phone while trying to unlock. Having one round the back seems odd as you would have to pick up the phone to use it.
Mine does have an SD card slot, but with 128Gb onboard, I still have 90Gb free after a year of use and plenty of photos, videos and music stored. I am not seeing the loss of that slot as such an issue as it was when phones only had 8Gb storage.