well, you asked a pretty generic question. Give us some more details.
Sure, a tahiti is a good boat for throwing the family in it and going skiing and tubing for the day....
What do you plan to do with this boat? what condition is it in? How much are you looking to spend on it? All of these questions are relative to if its 'any good'.
They made quality boats, but quality can easily be surpassed by how its been treated since it rolled out of the shop new.