John was a great help in identifying the critical issues that were slowing down our website, and was able to provide quality solutions. There's been a noticeable difference in speed and responsiveness, and the custom coded app that we asked John to integrate into our theme loads right off the bat. We had a small issue pop-up after a couple weeks when one of our other apps received an update, but John took the time to fix it for us and make sure everything was running smoothly. 100% would recommend SpeedBoostr to others.