Not sure if you are asking me but I will chime in.
I use the 1Pot system which comes with 3.9 gallon pots.
Unless you have a grow ROOM or a very large tent, the XL autopots are likely going to produce plants too large for your space, like monster plants, really.
I bought a two pot set up 1 res. 2 trays and 2 pots.
Stay away from the connexted pot system (easytogrow) as they do not work with cannabis very well as the plants are too close together.