I have no personal experience, but a friend bought one as she is getting a little frail and with old age ..... Added to that I`m not sure if it was exactly the same make/model.
Anyway she couldn`t get on with it. Found it wouldn`t work properly; sometimes it would part open a tin other times it just `stalled` and wouldn`t even start to cut the lid off. Eventually she replaced it with a mechanical opener from one of the supermarkets.
Should add that most of the tins were cat food; whether this makes a difference or not I doubt.