After some research and having test paddled different makes, I recently upgraded from a 13'6" kayak to a 16' Gaspe model from Clear Water Designs.
I really like its superior speed, manouverability (most of my paddling is with the rudder up) and ability to hold its track even under adverse conditions. The boat's stability was very evident when I test paddled it in heavy waves in Lake Ontario. The boat is well made and so are its finishing touches. The hatches do not leak.
One potential problem I can see with this, as with other plastic boats, is deformation of the hull if left exposed to the sun on land. A simple remedy is to provide shade. Car toppers beware.