I don't believe they have a 300.
Personally quality of tuition would be my primary concern, and Mike is superb.
Think your nephew will have to look further North of a 300 FI course.
Before parting with money, perhaps look at this link, if you're not aware of the ongoing Longmint saga (they own FAST)
UK: Longmint Aviation on brink of collapse | Helihub - the Helicopter Industry Data Source