For anyone that has installed comfort line fiberglass series 2100 casement (or any style) windows. I am interested in how they are holding up and if you have had any issues with them. I understand that Fiberframe did a major redesign on the Comfort Line Fiberglass window in 2010. About two years a Zen Windows added them as part of their line of replacement windows. I am considering them and if you have them installed I would appreciate your opinion and or experience with them. I not seen very much feedback and what I have seen is from before their redesign – they appear to be a good window choice though. Thanks in advance.