Just be advised that it does have a pretty significant flow. (as indicated earlier in this thread)
You can see videos on YouTube.
My Angels seem ok, and stay away from the output nozzles. Angels are not terribly efficient swimmers.
The red tail rasboras play in the current for a while, then swim away to other areas.
My tank is on the large side, at 155 gallons, 60 long and rather tall.
The FX5 is supposed to be good for tanks up to 400 gallons.
I don't think that kind of strong flow makes sense for small tanks, although I agree that you can't really over-filter an aquarium.
OTOH, most posters here seem to adhere to the "buy the next size up" theory of canister filters.
If I had a 75 or 90, I would consider stepping down the FX5 canister filter to another model with a lower flow rate.
And I would consider it unsuitable for smaller tanks, personally.
You mention "mostly angels," hence my cautionary note.