I've got quals from brick unis and the Open Uni and work in aerospace/avionics. I've had no issues getting jobs with either quals on my CV and we always view OU students with interest due to the increased self-motivation, discipline and determination they tend to bring to their studies and such.
The OU is indeed well regarded and many of their courses are accredited by the professional bodies in industry, for example their engineering degree and masters courses. It may be that some professional areas such as Law and Finance might prefer certain universities, but I've also known people to go on to masters and PhD courses at Oxford and Cambridge following OU degrees, so anything is possible.
It's a viable option for a lot of peeps who can't do brick uni, have to work or want a career change and, in my slightly biased opinion, may be one of the greatest things the country has ever created.
Might also be worth looking into degree apprenticeships in the industry you are interested in, as that might be the best of both worlds for you.
Edit: As always, make the choices that feel right to you and don't look back 😀