I contacted TickTackk to port a custom add-on from XF1 to XF2.2, which also includes a custom DBTech Shop add-on conversion to XF2. He has gone above and beyond in how quickly he worked on the product, and with the quality he has provided. He could have easily just ported the add-on almost as is, but he has done a lot of quality of life and performance improvements that have made a noticeable difference. His prices for the quality he provides are beyond reasonable as well.
He has also helped out with resolving issues with our test upgrade to XF2, even though the actual issues had little to do with what he was doing for us.
He has so far been one of the best add-on developers I have worked with, and I will likely be coming to him for all of our custom work in the future.