After many years of wedding and portrait work (using flash/strobe units) I decided to invest in a continuous lighting kit -- a Westcott Spiderlight kit to be exact. I purchased the 3-light "Window Light" kit from B&H. (Thank goodness I bought from B&H -- at least I had a no-hassle return)
The Spiderlight kit was a huge disappointment. Cheaply made and waaaay overpriced at $1900. The stands that came with the kit were listed as "heavy duty" and were anything but. The light units themselves were so poorly made that stuff rattled around and fell out when I took it out of the box. The protective case was little more than vinyl-wrapped cardboard with little plastic wheels (which were already broken when I received it). Needless to say, after taking one look at this kit, I sent it back.
If you're looking to get into continuous lighting, stay away from Westcott.