Nice staff? ROTFL.
I went there and they were SO rude. The woman behind the desk tried to say she wasn't rude. Really?! You were rude to several people besides myself.
The tester that took my sample was so nasty. They tried keeping me for an hour when I couldn't provide 30 ml. I told them beforehand I couldn't provide it. He said nastily "Well, you only get 3 chances and then you fail." He also told me I had 4 minutes in the bathroom and then barely 2 minutes later, he was knocking. He told me "I said you only had 4 minutes." Uhm, you barely left a freaking minute ago, jerk.
Maybe they hate waking up early, but YOU chose that job, not I. You should be a little less rude to your customers.