I'm a Raleigh/Diamondback dealer (as well as Kona), so bear with me for a moment...
Sure, Raleigh, like lots of British industry, had some real problems, and I'll admit as readily as the next person that they turned out some absolute garbage in the 90s and 00s.
A few things have changed, however, and they really are resurgent at the moment, as the chap who's ridden their bikes alludes to. They were bought over by Accell (a massive Dutch company who own Lapierre, Van Nicholas, Haibike and Ghost, to name just a few) a couple of years back with a view to becoming, once again, the pre-eminent British brand. Accell don't mess around and have put their money where their mouth is and the 2015 bikes are looking brilliant and are very competitive on price (I've just received the brochure and they were launched at the Tour in Leeds so there are pictures on the streets already). And besides all the performance bikes the Lifestyle range is very strong.
It's also worth remembering Raleigh's history. Nevermind the fact that they were the biggest bike company in the world, but TI-Raleigh were the dominant force in 70s/80s pro cycling, winning the Tour, 5 Monuments, 3 Worlds etc etc during their time. The new team are racking up wins in the UK all the time, on stock bikes, and Raleigh are supporting grassroots cycling a lot too. And they're still based in (near) Nottingham, employing a couple of hundred people.
The OP's GF's dad, is taking a pretty sensible deal, I would suggest - remember, many brands won't offer dealerships to shops within even quite some distance of shops selling their brands.
Anyway, pop in sometime if you fancy having a look at the current bikes: http://www.harts-cyclery.co.uk