Yes and no, some have problems some don't. Though they did just recently updated the software again. I have a crap ton of updates to do on mine, I just haven't gotten around to it since I been busy, but they released updates that should have fixed most problems. I have freezing issues with mine and my SVT. I can't even datalog through the computer I have to data log onto the device and then transfer the data log onto my computer. And even then it's hit and miss. Even with this I still was able to get my SVT tuned for the most part. Just at the mercy of a temperamental software.