It's a Books World

Goodreads summary:

Because the summary of the last book (Percy Jackson and the Last Olympian) will give you spoilers, I decided to give you all the links of my reviews of the previous books in this series. In my review of the first book you'll see a summary too. Here are all the links:

#1: click

#2: click

#3: click

#4: click

My opinion:

I like the conclusion to this series, but that's all I can see about my opinion. (If I could still rate in in comparison to the rest of my ratings of this series I would give the last book 3.5 stars). This series is just a series that you either love or just appreciate, and I ''just'' appreciate it. I admire Rick Riordan as an author and he has done an excellent job creating this world, especially with all the mythology in it, but it was sadly enough my cup of tea (anymore). I know it's middle grade and mostly I don't mind reading books when a character is much younger than me, but I honestly think that this series really is for middle grade readers (I know older reader love it too though, but sadly enough not me). The thing for me was that I just don't like fantasy stories that much anymore (which I already knew, but I still wanted to read it). I still recommend it to everyone who (still) likes to read fantasy and/or about mythology. I just wished I read it when I was a lot younger. 

What is your opinion about this series?