I can't comment on the value or comprehensiveness of that particular program. However the question of whether accreditation is important is an interesting one. A few years ago Stanford foregoed (forewent?) accreditation of their ChemE program, citing as a reason the wish to modernize their curriculum and not be imprisoned by requirements they felt were outdated. (Source
). So maybe accreditation isn't as important as it used to be. Then again, Stanford is Stanford - the name carries its own prestige regardless of accreditation by an external organization.
Whether or not accreditation is going to be important for to you personally will depend a lot on what you want to do with your credit/degree. If your goal is to learn, accreditation may mean nothing to you. On the other hand, a lot of people in hiring positions are probably going to turn up their noses at a program like that, and how high the noses are turned will depend on whose noses they are. In a lot of cases it may not matter, but in others your resume might go right into the rubbish bin. In cases where the quality of the program may be questioned, you can always buy some insurance by taking (and doing well on) a standardized test and weaving a good story on a cover letter.
If you dropped out of a University for a good reason, have you tried contacting the university to see if you can finish your degree? Not 100% sure what you mean by "I can't handle going back" - but if it's physically being on a campus that turns you off, a lot of non-lab classes are virtual now anyway. Also, there are plenty of local (community) colleges that have accredited programs (at least here in the States) that you might be able to enroll into just for a few credits.
None of that's to discourage you. It's just a hard question to answer without any information about your career goals.