You wont find the pro edge or the tormek will give you a better edge over a decent wheel on a grinder.
Your tools will look shinier but you won't notice any difference in performance of the tool. I didnt anyhow.
Tormek is not the best set up for sharpening turning tools and your likely to end up wasting an expensive wheel by continuously wearing a groove in the centre (most people over sharpen). Also, tormek will take forever if you need to reshape a tool.
The pro edge is very fiddly to work with, at least I find it so, setting the angle of the rest with that horrible key thing Sorby use and changing the belts for sharpening/reshaping.
You might consider keeping your grinder and investing in a Wolverine system and a decent pink or blue wheel for sharpening and leave the grey wheel on the other side for reshaping.
Wolverine is easy, quick, and will give you repeatability of angle with ease.
regards, Bill