If you do a search on it, you will find that some are good and that there is a lot of people that has some minor troubles with them.
Accurateshooter forums has some theral write ups on it,that you should look at if your looking to buy one.
Problems i have read are minor like set screws working loose and a bit of flex etc.
It will do the same as the rockchucker, just a different design, having everything above the bench and good access makes it more convenient to mount and slightly faster then some of the presses.
A 199¤ deal on a Rockchucker is a better deal then 200 plus for the Summit imo