The best way I can describe the series for me personally is "mixed bag", and that's exactly what Space Dandy is. Every episode is standalone and very different in style and tone, which can be a good thing as you never know what to expect next, but also a bad thing if they very quite a lot in quality.

For me, I really didn't like some of the earlier episodes, and that very nearly put me off the entire series as a result. Fortunately, most of the later episodes are pretty decent, and a couple are even what I'd call excellent (still a couple of stinkers, mind).

Overall, the series (so far, I'm aware there is a second season coming) gets a hard earned 7 from me. I can't say I'd recommend it entirely as I really didn't like or outright hated some episodes, but there are some pretty good ones in there that are still worth checking out (and hell, if you wanted, you could just cherry pick the good ones and ignore the rest, as each episode is fairly standalone anyway). The animation quality is pretty good and there are some pretty cool looking action scenes (bravo, Bones) and the soundtrack is pretty cool too and for the episodes that worked for me, they were very well done.

One last thing - For me the weakest part of the series (and probably why some episode don't just "not work", but outright fall flat on their faces for me) is the main characters. Dandy especially. I don't find him to be an interesting character, nor does there appear to be much dimension to him. All the interesting things that make the series worth a watch just kind of happen around him. QT and Meow at least get some character development, so far Dandy just kind of walks into things and they happen through no skill or involvement of his own.

I expect my opinion will be much the same by the end of season 2, but we'll see!