MityVac MV4525

[babyjay8495]

Any thoughts on this? I was looking at the other mityvac model it was half the price, but didn't include the refill option, which i feel it would be nice if it worked the way it says. With the 10% coupon this would a serious contender for me.
http://www.thetoolwarehouse.net/shop/MIT-MV4525.html