Bests & Worsts Reviews from Amazon

EDIT: I added a customer image to show the main problem with this device here: http://www.amazon.com/gp/customer-media/product-gallery/B005CJFBJE/ref=cm_cr_dp_cust_img_see_all_txt Pros: - Comes with hole saws - Simple design makes for an easy install Cons: - Incredibly cheap plastic spigot. I went out and bought a metal quarter turn ball valve for about $8 and fixed this issue. - The insert plugs gutters without gutter guards. We've had a few drenching rainstorms lately where I've noticed mulch from a few beds washed out. During one of them, I walked out to witness our gutter overflowing with water. The next day, I pulled out the insert from the gutter to see that it was plugged solid with 6-12" of pine needles and mini pine cones from nearby white pines. The same day, I noticed that our basement was wet in that spot, so it appears that all of the water overflowing the gutters caused some issues. - The insert causes quite an obstruction in the downspout. During really heavy rains, I've witnessed the top of our rainbarrel overflowing even though the hole was drilled several inches down the barrel. If I had the time, I'd dust off the old fluid dynamics books and see what volume of water it would take to fully fill a 2x3" duct with water, then convert that duct into a ~1.5" circular hole. I'd be willing to bet that it's possible to cause a major backup in the downspout with that big of an obstruction. A backup in the downspout will push more water into the barrel and overflow, or potentially overflow all the way up to the gutters. Water on the foundation is not worth saving a few gallons of rainwater for. I've got two rainbarrels with this system installed. I'm planning on converting the one that gets lots of flow to the fiskars design. It widens the gutter and might allow for greater overflow during heavy rains.