This show was created in 2007. The CGI for a TV show of that time (not only in detail, but also in prolificity, different creatures every episode) is, in a word, awesome!
Are there shortcomings? Sure. But the adventure is fun and with a conspiracy plot woven throughout, it keeps you interested in the main characters. Really, I'm not in it for the character development, but the excitement and adventure. Sci-fi candy if you will.
They do a really nice job with the story telling too though.
The various creatures do eat people, but the show isn't gory or overly sexualized.
I'm just looking for sci-fi entertainment and they carry a lot of my favorite elements here. Sure a little campy at times, but overall it keeps me coming back. I was never able to watch it when it was a new show, just bits and pieces here and there, so it is nice to finally connect the dots.
I think if you go in with not having expectations of The Last Jedi movie or something similar, you'll have fun just watching...and sometimes even being startled!