Best system I have seen to date is in Grim Dawn. An NPC you go to allows you to rest points one at a time, and the price is scaled based on level. it's very simple, and yet complete and fulfilling. I can redo that one mistake I made w/o having to burn a precious token. But if i want to redo the whole gamut? cost you a pretty penny. it allows you to adjust things on the fly, a bit at a time, but also leaves a heavy price if you just want to start fresh. It encourages options while making bigger choices more impacting. And it would be far simpler then a multi-tiered token system.

respec the hole skill tree when we use one.
That should do it

Its frustrating enough to figure out why/how a skill is bugged or why it does not work as the text notes, having to pay constant resets on top is just adding insult to injury.

I think it would be the best way to find out which skill doesn't work. here's the ones i already know about:

-Fast aim

-Haemophilic shock

-Red thirst

-Disorient

-2h axe running attack doesn't stun red supp enemies as advertised and ofter leaves you runnning in place when in melee range.

-Retargeting protocol not interacting with sniper tag skills.

-10% Life gain on one hit kills from single target tree stops working when energy shields are active.

-Every sniper shot often misses the target when tapped (when you don't use the wheel or "quickscoping")