I've been using Joom Donation for several years, on a number of sites. It intergrates with PayPal very well, transferring name and address information. I had a minor issue after I updated lately, but it was resolved immediately. Turns out the problem was not with Joom Donation, but with my Joomla! settings. I especially like the ability to add customized fields to the donation form, collecting some extra information. Strongly recommend this.