I've always had a soft spot for these small motor sailors, I think this one is a Colvic Watson which has perhaps become something of a miss used generic name for the type, The IP24 is similar and of course there is the Fisher range, all in their way seaworthy little craft.
Sailing performance is going to be competent at best, although reading some of the forum comments, it may well be better than expected. The forte might be pushing a foul tide, hard on the wind with a heavy duty diesel pushing you along in relative comfort in the wheelhouse, giving a friendly wave to the yacht crew sitting on the wet rail as you pass.
The hull shape is like a whaleboat, heavy displacement and voluminous, plenty of room even in the 23 foot version which I guess this is (apologies if it's a 26 footer), great views from the wheel house - saloon. With a nice heater you can wear your regular clothes in all but the worst condition. All in all a nice weekend retreat.