Thanks all for the detailed assessment, being rather green to modern bikes it was certainly needed.
Being 33 and mainly riding with my kid I don't see that the upgrade side of things will be a huge issue as I don't think I will progress beyond what the bike is capable of. it will be a consideration though as no doubt the son will inherit it at some point. Now you mention it the Czar Neuron 24 it looks interesting, I have not considered it as I have not found any here in the UK. I don't really have a budget as such just want a decent ish bike to play on that's does not cost the earth for the sake of it, at the end of the day the bike will not make me better. I have found a Czar Neuron 24 from an online store in Poland that will deliver to the UK. I will be giving that some serious consideration but not for to long as we exit the European union at the end of this month. Imports may be more costly and time consuming after then.