I'm a 5'4", 135 lb paddler, I bough an Epsilon 100 Kevlar about 8 years ago. This is a great boat and I have paddled in a variety of conditions from Nova Scotia to Lake Ontario. I was very happy with the performance of the boat (and I still am), and had hoped to keep it for many years to come.
However, a few days ago I discovered a few small cracks on two spots of the transparent gel coat of the hull around where the car rack straps fit on the boat. To my alarm, I noticed that the fabric around large areas around the cracks is discolored, as sign of water penetration and delamination of the layers. I went on line and have read that this is not uncommon for kevlar boats. I have to get it to a repair shop and see whether they can do something about this (at at what cost).
My advice is, this is a great boat and I recommended, but if you buy it don't go for kevlar, it is not as robust as they make it out to be.