Also a happy user here. Newsblur is by far the best replacement for high-volume RSS power-users that I have found. And the fact that it's open source so I can 1) satisfy my curiosity as to how he is doing things and 2) install myself if the site ever goes belly-up is just icing on the cake.
It's definitely not perfect, but it gets better every day. Performance has notably improved over the last month or so. Kudos to Samuel for a great product. Hopefully someday I'll be able to contribute a bugfix or something to help.
Having tried NewsBlur I thought the web UI was perfect for my style of RSS reading and it was fast enough for my needs. The Android app is the icing on the cake.
I paid 36 bucks, the extra, to support a product that I use every single day for more than 10 hours a day, a product I enjoy using and would contribute if I had the knowledge or time.
Thank you very much Samuel, you are doing a very fine job and I am more than happy in helping the only way I can/know right now.
NOTE: I am not affiliated to NewsBlur or Samuel Clay in any way. Just a very happy customer here.