I’ve been riding Tech 3 E4’s on a my Orange for 2 years and SLX 4 pots on my ebike for 1500 miles. I built a new bike recently that needed brakes and got the 1st set of Tech 4’s that my LBS could get in (I pre ordered them before released). They are really very good. So much so that they now grace my e bike, and will go on my next build too.
Compared to the Tech 3, way more power but, with the same lovely feel that you can meter out exactly the level you need and great feel where you can sense the brake locking and easy to modulate around that point. If you do want to just bang on the anchors they can do that too, where the Tech 3 doesn’t have that immediate power. Lots of feel though and that seems to be retained on the Tech 4.
My SLX Shimano 4 pots I would say have similar max power if bled and set up right. And I found the modulation fine and didn’t have most of the Shimano issues. What swung it for me was SLX I broke a piston. Required buying a whole new calliper to resolve and the feel on the Tech 4 is nicer and has the same amount of braking power. And you can get spares and fix at home. So with that in mind and locally made, there isn’t a reason not to go Hope now. Price is not dissimilar, pads are cheaper than Shimano too. I tested the Tech 4 side by side to a the SLX 4 pots, when I broke the piston I swapped on the Tech 4 off my other bike as temporary solution. So SLX on the back, Tech 4 on the front. Good side by side test. The new stainless pistons are great. So smooth you can push them back in with a finger nail. Try that with a Ceramic piston. And as a direct comparison I made the choice to swap over to Hope on all future builds. Nicer feel, similar ultimate power, locally made, spares available and same price.