So I have indeed noticed all the fuss people have been making about this cartoon lately. Additionally I think all those pony avatars and such Gifs are simply delightful, I have always had a soft spot for ridiculously cute things.
In fact I was so amused by the parody of MLP posted here that I watched an episode, and I feel the only way to justly describe the experience is by proudly stating that my mouth is now riddled with cavities on account of the sweetness. I find it ironic that the amusement inspired by something making fun of the show actually resulted in me watching it and thoroughly enjoying myself, the Benny Hill Chase reference made me pause and smile.
Speaking as being only just exposed to the material in question I have to say the following. The visuals were indeed stunning, and the art was cute and cuddly, while feeling fluffy and sweet. The characters are about as well developed as one could hope, each embodying a facet of the modern female. Twilight is probably my favorite for not being a cookie cutter stereotype, also I have a thing for the Gothic chick and she gives me that sorta vibe.
It is hard for me to critique it because of just how much fun it was to watch, and the childish nostalgia it made me feel, but I have a few issues that may or may not be linked to my Y chromosome. Firstly it was infectiously cute, even the bad guys, so it was kinda hard to take seriously, even in the mindset of a child. The characters themselves are sweet to a fault, and conduct themselves with the same uncanny consideration of the Brady Bunch. The mythos is piled on thick, but it somewhat breaks the illusion when you realize this show is in fact a very well constructed commercial.
In closing, I liked it, and the fact that I sympathized with the only frequently occurring male character, "Spike", the dragon, who commonly complains of things being too frilly and girly but ultimately enjoys himself all the same, was a clever bit of writing on behalf of the creators. It is for this reason, that the show features a male character surrounded and at times suffocated by the femininity of the affair, who at times both likes and dislikes the arrangement, that I personally believe not only is it OK for Boys to watch this show, but it was intended by the creators.