Before I started watching Fuller House, I read a bunch of reviews and was so disappointed that it was getting ripped to shreds that I almost didn't give it a chance, but curiosity got the best of me and I started watching. To echo some of the other reviewers, yes, the first episode is incredibly cheesy and feels more like an homage to the old cast than an introduction to a new show, but after just the main cast of Fuller House is left, I found it actually quite fantastic.
Some say that it's just rehashing the original show and in a lot of ways, they *have* taken an extremely similar storyline, but beyond that it is totally its own. But what I absolutely love about it is that it feels like a 90s sitcom. I grew up watching Full House, Boy Meets World, Family Matters, etc., and I miss all of those shows. When Girl Meets World came out, I was excited for that one also, but was disappointed in how it turned out. However, Fuller House can stand on its own two legs without their Full House background and I have been very pleasantly surprised.
Nowadays there really isn't much family friendly material on TV; there are very few shows that aren't filled with innuendo, language, sex, and so on. But Fuller House stays true to the Full House values and while it may be cheesy at times, each episode has a moral to the story where someone learned something and is better for having learned it. It teaches the audience what's really important in life and how much families really matter.
If you're looking for a Modern Family type of show, you will not find that in Fuller House, but if you're missing the sitcoms of the 90s that you could comfortably watch with your whole family, you will love Fuller House.