In the Transmission crew, we make try to make sure that the client is as stable as possible. In the month since the release of 0.72, we have had over 200,000 downloads  and have received very few non-isolated cases complaints. The worse thing we have found is that a few people's UPnP has stopped working. Surely 200,000 people testers can't be wrong? As for Transmission not being a "real client",