ZD 1200 (fw 10.4.0.0 build 98) with 9 x R600 AP's high density open office floor plan.
We have roaming and connection stability issues.
Devices will not roam when moving around the office or will roam frequently when stationary. Devices frequently disconnect and require wifi device to disconnect/reconnect to re-establish stable wireless internet connection. We have Mac, Windows, and Linux laptops.