The ease of use is what I like best about this system! It's simple for customers/grower users who don't have much experience with cannabis products but are looking into selling their own product lines (or already do). There isn't anything in particular i would dislike at this point; it does exactly as advertised so far which makes me happy :) They also offer some great discounts if you sign up through them when buying from other dispensaries too - they're all pretty good quality companies and worth knowing more info about. Their customer service can be hit & miss sometimes though depending where your call comes thru. If there was one thing we could change its having multiple locations throughout California instead being just two main ones here. We've had better luck getting shipments out faster than expected using D2S compared to our old method via an outside shipping vendor since everything goes straight to us once shipped vs needing someone else get involved first before things go forward towards final delivery.