Vantaggi
Note that I worked there in 2000.
A small company, centrally located in Milton Keynes.
Being small you get to know everyone else there, and with a couple of exceptions everyone is nice to know.
Good offices.
Good equipment (for myself as a developer)
Friendly place.
Svantaggi
If you are looking for a "big company" experience with all the benefits (and disadvantages) that that brings, look elsewhere.