Lol. I did a couple of OU courses. The first was a level 4 course which was so boring and badly presented that out of 30 starting only 5 of us actually finished the course. By the way, I got through.
The second was (I believe) T305 in which my tutor and I had a slight personality conflict that ended up with my taping our phone conversations, calling him a damned liar when he claimed he never said something that I had a recording of him saying. I offered to present the evidence to the Open University as proof of his incompetance but it was brushed under the carpet as was my complaint about him. Apparently his complaint about me was worth more despite that his complaint was utterly unsubstantiated (and provably so from my recordings - which the OU declined to listen to).
My programming course was brilliant and I got on well with the tutors and came out with flying colours.
After all that I decided that it wasn't worth the hassle and since I already had a degree anyway (from a real university) there really wasn't much point in following many more undergraduate courses.
Since then I have followed the adventures of my friend (and best man at my wedding) Eric Hall and his battles with the university and the OUSA executive with great interest. Although at times it seems like six of one and half a dozen of the other, neither the Open University and OUSA come out as shiningly spotless.
If I were presented with resumes (or CVs) from people that had studied with the Open University I would say "fine" and assume they had done some work on the subject of their choice. I would not, however, rate an Open University degree on the same level as a degree from any of the other accredited British universities. In fact, I'd probably rate the applicant as unqualified but with potential skills in the area.