I've got high hopes for him as he seems to be able to actually strike a ball well, as well as having some skill, athleticism and good technique. Sammy's a good dribbler and has pace but his delivery is often totally crap, his general ball-striking is poor and that's always going to hold him back.
I'd be careful with this lad. My preference would still be to send him out on loan to a Championship side but wouldn't be averse to doing what Liverpool did with Sterling, initially using him as a super-sub and easing him in to the first team, if he makes an impact.