Don’t buy their self specced steel/welded frames. If they even still sell them.
I know of around half a dozen (probably more) who’ve had everything from annoying creaks traced to cracks to frames actually coming apart on them.
The carbon ones are fine, same as everyone else selss at a similar price point, open mould stuff with Ribbles choice of paint and stickers.
The build needs checking over though, i’ve had a few through my hands (12-15 odd years ago admittedly) but i think the grease pot must have been kept a long way from the workshop.
Saying that, most pre built bikes need a good going over.
Edit: just had a 15 second flick through their website, they seem to have completely moved away from the 853/653/531 world now. Everything they sell seems to be straight out of an far eastern OE catalogue, with paint.