After doing a little research on window inserts I decided to take a shot with Indow. I was a bit hesitant but the whole process was super easy and I had all the support I needed when measuring the windows. The shipment was faster than quoted and everything showed up without any damage. the inserts themselves were amazingly simple to pop in and back out as needed. Now for the best part, Living in new England fuel costs in the Winter (Oil) can be pretty rough. During our first Winter with the inserts we ended up saving $3,000 on our oil costs year over year! to say I was a bit surprised while being ecstatic would be an understatement as this represents about half the cost of the actual inserts! This also means that after using them this Summer while running the A/C during the hottest months and again next winter, the inserts will have paid for themselves in a single year (2 winter seasons) of use. I would say we got a big bang for our bucks and would recommend these inserts to anyone else interested!! 10/10!! Side Note: I worked with Reed on my inserts and he was fantastic!!