I am considering using Lami Glass of America to resurface my plaster pool. They are located here in the Los Angeles area of California and use their own fiberglass product, Lami-Coat. They seem reputable but if anybody has any insight on them or their product it would be appreciated. But aside from that, a fiberglass seems quite an attractive proposition on paper and yet it seems quite a contentious issue on the boards. What are the drawbacks of fiberglass if installed properly ?