I have been using ChannelGrabber for over 6 weeks now and I dont know how I managed without it. I run 5 different websites, all of which have cross over products which can be a nightmare for keeping on top of stock control.
On average I was having to refund around £2000 of orders a month because I was struggling to keep on top of the stock control and I was selling out of stock items. Having to login to each site individually to update the stock was very time consuming and easily got confusing.
Since using Channelgrabber I have cut down my monthly refunds by around 95% and I am now spending less time updating my sites. Instead of logging in to each one of the sites I now login to Channelgrabber and update EVERY site from there with one click. It really is that simple and I cannot recommend it enough.