My grandfather had a Philips like that. He didn't have much hair left, but what there still was was trimmed by me witht hat Philips. I think it was easier to use for cutting your hair yourself than a regular clipper if you aren't a trained stylist.
I got a haircut just before I decided to stay home, so far so good. But in a few weeks I have to decide what to do. With a tremor and only a beard trimmer I have only a few options. Most likely I will be trimming the sideburns a bit and leave the rest grow. Or else I will have to trim my hair all over the same length I guess. No fancy haircuts right now.