>>328578108
The base stations? They're really small, like a large webcam. You just plug them in and point them towards the play space. I have one of the stations on my computer actually. 

>>328578397
My space is 5ft x 5.5ft and I'm doing fine, I 'rarely' hit my furniture so long as I keep track of where my center of playspace is. OVR has a nice little circle that shows center and front direction.