I've seen a set of really bad hatches on an abused boat. Cored with parquet like wood material - just crap with way too much end grain. I hope to goodness the new ones are composite cored.
The Resin Transfer Mold (RTM) process used while a good idea doesn't allow the finished corners to be smooth. They add fairing compound to get the nice look. Doesn't hold up well to bangs, or water that freezes (if stored in the cold weather). Have to be careful with them and cover or wrap the boat. Hardtop edge is done the same. I'd either do them myself (good), take them to a body shop (better) or a glass guy (best). Prob going to cost a handful of marine units....