Is a 2017 Ford Focus worth owning?

is a focus worth havving

If it suits your needs as a vehicle then yes . If not then no. If a shop says it seems to be in good condition ( I guess you are asking because you are thinking of buying one ) then maybe if the price is right for you.

I think it’s a pleasant car in a handy size range. Its reliability record is much worse than average, and it’s on the Worst Used Cars list for the 2012-2018 model years. (Consumer Reports April 2020.) It’s one the models Ford has stopped making.