I use 2 of these as a colour filler on very small locations and in my rehearsal room, set to master/slave and auto sound. I use them standing on the floor, aimed up at walls etc.
They do not output a lot of lumens, so don't use them as spots or main light source.
The foot-brackets has some limitations and cannot accomodate all angles, and because they are very light, they really needs to be mounted if you need perfect steady alignment.
For the price, you can buy a lot of these. But don't expect them to survive heavy gigging.