For everyone replying, thanks for your continued advice.
My problem with Halfords is that their service isn't up to standard, and in some examples, 'brand' names are selling bikes in their stores with frame numbers that don't match the actual brands numbers. For example, Raleigh have some Halfords 'exclusives' but they aren't Raleigh's at all, I can't believe consumers are so tricked.
I have been to a lot of stores (across the UK, up and down the motorways during different journeys) , and I can't confirm good service fully, I mean, if you need something like a tin of brake cleaner for the car they will sort you out because you asked for the product, but as for the bike area I have never found that they've known what they are talking about in the slightest.
One time I was with a friend getting a six week check up and the guy kept asking 'what else' they wanted done, as opposed to taking a good look at the bike, finding the issues and resolving them. We left to go on a cycle, for my friend to realise 'Oh no, I forgot to mention XYZ', which was disappointing as sure, the friend should have remembered, but if we were clueless and depended on this for a safe bicycle we'd be so unfairly neglected. Thankfully the issues left, which were uncrimped brake and gear cables (on a 6 week old bike?!) and loose hex-fitting under the handlebar (serious I'd imagine if it was to give up) could be fixed by relatives.
I'm by no means a fanboy of any brand, in fact I actually like Raleigh but also find it hard to be happy with their offerings these days given that there seems to be no real substance behind any of their offerings, especially when I realised they were basically letting anyone build a bike and use their name under license as mentioned above.
So by all means, I know the 'name' doesn't carry much with it these days for any brand, and as the other guy above said his experience with Specialized was similar.
The bike I have, which is from Halfords (see, I gave them a chance!) is one I do like, but the failings and shortcomings of it are leaving me thinking I should have spent more on a 'good make' that I could depend on. The option remains to keep it and switch to better components, in which case I'd need to start a new thread in the mechanics(?) section to get some advice.