Pick a track in North Wales and you’ll find several people tell you it’s crap and several say it’s brilliant. They’re all great in their own way. I would say that some come alive the more fit you are but that may be true of MTB in general.
Go to Llandegla, it’s great fun for what it is. A super fast XC track with optional jumps (all rollable) and so many options to mix it up across all the tracks and the Blue is especially fun ridden fast. I’ve gone through the love it, hate it, won’t go there snob, back to love it, use it for fitness, ride there from home phases since I started riding. I’m back at the love it for what it is but wish they’d add new sections stage. I use it more in winter than summer but I’ll do sections of Llandegla as part of a from home AM ride if I fancy a few jumps.
I tried to make a different (as in not the B Line!) video of Llandegla back in March:
Winter is Over – Llandegla Fun
If I had to pick my all time favourite TC it would be CyB but I don’t get there enough despite having a car park pass.
I also love Penmachno (both loops), Marin, Antur Stiniog, Llangollen DH and the open mountains around Llangollen. It’s all great.
I wouldn’t dismiss going to Llandegla though. Just don’t add yourself to the long list of crashes that happen at Llandegla and end up getting air lifted from there.
I don’t get to the TCs that often but when I do I like them. They’re great in the winter.