Having owned a Cardinal (a 180 hp model) I can say they are an incredibly comfortable airplane with wonderful handling characteristics.

The 150 hp with powerflow would be a nice alternative to the 180 hp model and lightly loaded would be capable for nearly all flying situations.

I miss my Cardinal badly and Royson is offering an excellent deal. The Cardinal Flyers is an excellent organization. While it is not as "warm and fuzzy" as the 150/152 club, the technical knowledge on these birds is incredible from the group there and they are ready to offer advice at any time.