Personally I think that both the Tomahawk and the C152 are excellent initial training aeroplanes - simple to manage, good view out, reasonably inexpensive, and just difficult enough to fly well that they tend to teach good habits.
As a "grown up" I'd rather fly a PA28 for touring, and in fact currently use a Grumman AA5 for the purpose, which I like even more. But, those are easily and inexpensively converted to after doing your PPL on something relatively simple, learning on them strikes me as unnecessarily expensive.
Also look at the Microlight School at Wycombe as well, who have a good reputation and probably nicer aeroplanes.
G