I used to work for them.
If you’re dedicated to the whole thing, they’re as valid as any other. I doubt they’d get you a top class job or owt on their own, but few will, I guess?
Academically, I think you have to be willing to look into a lot of it yourself, which is always easier to do with guidance anyway - it didn’t seem “particularly” rigorous on its own, and I think the quality of the academics varies wildly.
They’re not for everyone (in fact, I think the pool is does suit is a lot smaller than the industry is thinking), and a 15 credit module might be a good way to see if it suits you.