I can understand how Coldplay fans might not like this direction, but for me, it's still a good album, whether it's their 'usual' style or not.
Their music was always a bit too melancholic for me, and didn't suit the atmosphere (listening to Coldplay on a hot tropical day is kinda weird), so while I recognised their talent, I never really cared for them. However, when Viva la Vida came out (especially Prospekt's March), I really started to like them. I even went back to their previous albums and found some songs that I now really enjoy. Being a bit more mature and knowledgeable, I can understand and relate to their lyrics better as well.
Mylo Xyloto is certainly not their usual type of music, and is even further from their original sound than Viva la Vida. The good thing is, I really like this type of electronic / chip board music, so I'm still enjoying the album a lot. I think the main thing is that they're still able to create an atmosphere with their music. It takes you to another place, and I think that's a signature of their music, no matter what style.
I think Hurts Like Heaven is my favourite track, and Paradise is really growing on me. I like Princess of China, but the second half of the song seems incomplete after that chorus with Rihanna.