Hey, bit different but I did an OU Business studies degree about 2 years ago. I honestly found it really really hard. Sorry to put a downer on it but I really struggled with not having someone there to explain the bits I didnt understand. They say that you get loads of tutor support etc but I found it to not be enough. If i emailed my tutor she got back to me a couple of days later which cocked everthing up timetable wise.
I am thinking about going back to full time uni in the next couple of years as i'd like to go into a medical profession and have been looking at access to HE courses run by local colleges. If he has GCSE maths and English he would only need to do about 9 hours a week, they fix the timetable to suit the individual, with evening classes etc and the course lasts one year. You also get help with applying to uni (personal statements etc) which really appealled to me as I wouldnt know where to start and the course is geared towards getting you into uni so basically ensures you get the right number of UCAS points neede to get in!
The thing that appealed to me most is that because i'm under 25 its free!! Cant believe I spent about £2,000 on OU!! Dont know about your personal circumstances but if your partner is under 25, its his first full level 3 qualification or unemployed then its free. Most colleges have hardship grants as well to help out with costs
Good luck
xx
Ps. Colleges offer loads of different subjects as part of the access course so he would pick the ones he wants to do. If he would want to start in September though he'd need to apply asap