I've played around with it since the first beta. Now that they are on beta 7, most of the connection issues have been worked out. So far, I am very pleased with how they are developing the app. They are working on getting solid underpinnings before sprucing up the UI. IMO, once they get the UI to the level of their Android/iPhone apps, it will be a definte winner.
Having used both Tapatalk and BerryBlab I would say BerryBlab would be the best to stick with. Not sure if it is able to have dual compatibility or how that would work on their back end, but I am sure they are looking into it.
