Matt, asking Alex if it is alright to go to Naples Air Centre is, in effect asking a salesman if it is ok to buy his products. Under what circumstances would any such salesman say no?
The post from B2N2 illustrates the types of problems which have been reported by students from Naples Air Centre in the past. It is possible that the company now has a totally different attitude, but if this is not the case, having the Bristol Ground School link will not protect you.
I suggest you do a pprune search for feedback ( I found comments from 2014) then find out it the problems reported still exist.