As noted on the Care and Maintenance Page of this web site, fiberglass is the most widely used material in the construction of small to medium sized boats. This is due mainly to the strength to weight ratio and durability of fiberglass, as well as its resistance to rot or rust from exposure to the elements of nature. And if you prefer dragging your canoe over obstacles rather than picking it up and carrying it, consider buying a cheap plastic boat. The fact is, the hull planking of your boat is completely sealed with epoxy and fiberglass. This spar Varnish will need to be re-coated occasionally.
Holes are actually, very simple to repair.
Instructions for repairs are found in the owners manual. A complete list of materials used in construction are also listed in the owners manual, making repairs by yourself or another boat builder, quite simple. I have noticed that bright light shines through the hull of my boat in a couple places. The epoxy is translucent and tends to act like a lens by directing bright light through the hull between some of the planking. This is not a problem and your hull will not leak.