Rudi's place was decent enough for 4 unfussy travellers. We mainly used it as a base for hiking in the surrounding area but enjoyed the chance to eat out nearby. It was a good place to rest our heads after big days of exploring.
There were a few issues: we found the key really difficult to use, and it was even more frustrating to read that this issue has been raised by about half a dozen reviewers. It should probably be changed by now. We also found the shower water really bad, approaching dangerous: either scalding, or too cold. Micro adjustments didn't seem to do the trick! There were a few other small issues: no toilet paper, only two mugs (in a house for four people -- how expensive are a couple of extra mugs?!), dusty cups and glasses.
The main appeal was the good location, with plenty of bars, restaurants and coffee shops down the end of the road. The living room was cosy and the flat is bright. In fairness, we were probably paying an Easter premium -- but the basics listed above would have been a bit frustrating regardless. If they are fixed, I'd definitely recommend it.