That pretty much sums him up. The vids posted make him look like some sort of mavarick winger who just blasts past his fullback all the time.
Brendan likes to keep possession, as we all know, and Oussama will fit in very well with that. He is actually quite conservative most of the time unless an opportunity to take his man on is available.
Possibly his best attribute is the way he's able to keep hold of the ball while the rest of the team join him further up the field. He usually plays off the left which leads to him cutting in on his right foot a lot, but I have seen him play on the right as well and he tends to be a lot more of a conventional winger on that side ie: stays wide, gets to the byline and whips crosses in.
There's no way to say for certain how he'll turn out for us, the Prem is a massive step up, but if it doesn't work out it won't be for the lack of speed and technique.