Teehee, I fall into a niche category because I learnt in a (blue) Robin 200, so nrrrrr!
Excellent training a/c although one small gripe is that spins are prohibited.
The PA28 is a good a/c because, it's big, has power and floats/glides well. However, if you learn in a slightly crap a/c (read training), you can appreciate things post-PPL a lot better imho. Going from PA28 to Robin would frighten some...