like a true nature's child

I'm paying for Feedbin because at this point I am a big fan of services that have a business plan besides "Erm, ads?" I think it meet most if not all of your deal breakers although I'm not quite sure what 3 means. I think the trial period is "put your credit card info in and you've got 3 days to cancel before being charged" like Pinboard. I definitely never feel like it's not loading stuff in a timely fashion, and because it's a funded site, the owner's made a lot of improvements to site speed and reliability from when it was in beta. The one thing that it does that I think might not fit what you're looking for is that when you add a new feed, it only seems to fetch the last 20 or so items. That may be all that's in the feed? No idea. It also has the ability to show you the whole article in the reader. So say you're following something that only puts the first few sentences in their feed (GRRRR). If you click the Readability button, it will attempt to pull the whole article in. Some sites work better than others but I find it works more often than it doesn't.