Originally Posted by corroonb
Has anyone had any serious problems manually installing this firmware?
That depends what you mean by "serious problems", I suppose. I was unable to manually install it, and had to factory reset afterwards. That's about as serious as install problems get on the Kobo, but it's not like it was permanently damaged or anything.
1.9.17, which I remain on by choice, has the snappiest pageturns around. I just fix the top margin bug with a Calibre epub-epub conversion.