I spent years on A/B, then I was an early class D adopter (back in the early 2000's).
At first I thought they were great (so light!), and then fell out of love with one amp, then bought another, then another, yadda yadda. Different pre-amp, then another, etc.
Then I began to notice that the hired-in / venue provided old-school A/B / Valve amps instantly sounded much better than whatever new-fangled car radio amp I had.
Bought a Walkabout... sorted.
A new class D came out that promised to be a new dawn in class D tone. So I sold the Walkabout and chased my tail for a while again.
Realised I wasn't getting anywhere, bought another Walkabout.
Found the HandBox R-400. Even better than the Walkabout.
Tried the WB-100. OMG.
But at the moment it's a luxury for me, so the R-400 does me just fine (and has for a number of years now). As soon as the gigs justify it, I'll get the WB-100.
(Note: this was my journey. Yours may well vary.)