Note: All image processing software takes practice if you want to get the best out of it.
In each case, there are very helpful video tutorials as well as the usual on-line help.
However, you must be prepared to put the time in.
Software under £100 or $(US) 100
(1) Luminar 4 requires a different way of thinking (compared with ON1 and ACDSee). Editing is based on AI software and done more (though not exclusively) through available presets than the manipulation of settings using standard slider controls. This may suit some extremely well, and they will certainly achieve effects and manipulations that otherwise would take a great deal of editing time and in any case, would be hard to produce.
Prices on 20 Mar. 2020
(*) Nominal value with 10 as a maximum.