http://www.chelseafc.com/news-article/article/3464334/title/chalobah-loaned-to-forest

Never seen him playing, is he really good ? got a video of him playing ?

(I highly suggest you watch the video in the middle to see what he can do in a full match)

Chalobah has glimpses of Viera and can play DM/CB. He is tall, fast, strong and agile. He has great vision and great football mind for such a young age. He also won England FA's Young Player Of The Year last season over the likes of Barkley, Henderson, McEachran, Powell, Will Hughes, etc (he also won it at the age of 18). He is definitely one to watch out for. He could even be in the Euro 2016 squad if he develops at this rate.

I like how the comentator calls him chalabahhh :) he seems to have a great vision and physical aptitudes...
The number of Chelsea players on loan are incredible, it could be amazing investments (Courtois, Lukaku), we will see what happens next for him...