Try running it alongside GA and comparing stats. I did this for a while and switched to Piwik as it consistently counted more visits (legitimate visits, obviously).
Also, please consider adding your Google Analytics use to your privacy policy. They require it, even though most people ignore this requirement and there is no enforcement.
Side note, I just tried @ replying to your companies post on Twitter and got a @your account may not be allowed to perform this action' http://i.imgur.com/9uoEn9B.png Strange, never saw that before...
We received some mentions in the last minutes, and we just reviewed our account settings, nothing seems problematic on our end. Weird indeed. But thanks for the feedback!
That's an important point; I'm seeing referral spam in my GA reports which I never noticed before 2015. I manually discount it when compiling reports, and my understanding is that these spammers hit GA UAs at random without even loading your website.
Also, please consider adding your Google Analytics use to your privacy policy. They require it, even though most people ignore this requirement and there is no enforcement.
Side note, I just tried @ replying to your companies post on Twitter and got a @your account may not be allowed to perform this action' http://i.imgur.com/9uoEn9B.png Strange, never saw that before...