Over many many years and trying so many injections rolling machines,we always end up buying another Gambler.
The only flaw is the plastic part when the nozzle cracks and it's nearly impossible to place the tubes on.
I definitely like that it comes with an extra one in the box. Makes it lasts much longer use. But,at times we loose the extra one and having to buy another machine. It is a bit much to order a replacement part that is thirty cents plus seven dollars fifty cents for shipping is steep.
One of the plus sides..it actually fills up the tube with the tobacco,up to the filter...no gaps. Easy to use.
I do like that it can be taking apart,not only to make easily repair on your own,but to give a good clean. I add a few drops of lube afterwards.
Nice durable injection roller!