My best piece of advice for you is this: MAKE AN APPOINTMENT!
Seriously, you will wish you did if you show up without one. You can make them online and it really makes this a hassle free experience.
This place is extremely busy first thing in the morning (they open at 7am). The waiting room is full to the brim and it's a bit uncomfortable. If you don't have an appointment, you will become frustrated with all of the people being called before you while you sit and wait. And wait. And wait.
I went in this morning for some labwork and luckily had an appointment that I made earlier this week. The place was surprisingly empty (it was just around 10am). I signed in and was immediately called back. I was actually in an out of there before my actual appointment time. Easy, breezy!
The staff is friendly and I've never really ever had a problem with them not finding my veins or anything. The only thing that really bothers me is that they aren't consistently taking co-pays when you visit. So sometimes you get billed (which I tend to not pay attention to), and sometimes you pay before getting called back. I wish they would just stick with one or the other.
Generally, it's a good facility and is close to my house, so I will be back because of the convenience.