1. Workstation type: You do not need to prepare a table. This machine with a wheel workstation and easy to move everywhere you want. You can also put your computer inside of this workstation. It is looks more professional and tidy.
2. Portable/Mini type: This is space saving and can put on any tables you alreay have. You can take it in your car to anywhere. Easy to move.
So all of them are good and it is depends on your needs.