I like that it has all of my different accounts in one place, which makes managing them much easier than having to log into each separately! The reporting can be confusing at first but once you get used too its great for monitoring your network's activity levels or even just general traffic patterns across devices/servers etc.. There are some things i would prefer if they were more user friendly (eg password resets), however this isn't something we have noticed other users complaining about so far - maybe because our customers seem pretty happy with their experience? We've not had any issues using cystack within our own environment either though others may disagree :).