Howdy,
The TheMightyHobie18 has pros and cons.

Pros:
1) It is overbuilt, so it's structurally forgiving of rookie moves.
2)There are a lot of them available on the used market.
3)Hobie made a lot of them so parts are also not hard to come by.
4) The reserve bouyancy in the bows makes it less pitchpole prone.

Cons:
1) The first TheMightyHobie18's were made in '76 or '77 so the design is a bit dated. Although the Tornado came out in '67 and its design is still current.
2)It's a little slower than than the the current 18 foot boats. For example the the N5.8 has a D-PN of about 67 and the Hobie Tiger is even faster. The latest D-Pn is around 71.5
3) The TheMightyHobie18 doesn't have that much bouyancy in the sterns, so it's easy to drag the transom(s).

David Ho
TheMightyHobie18 1067