Customer services has always been their weakness. Shipping costs, back orders, unanswered phone calls, etc..But on the engineering side of things they sure do know what they are doing. I ordered my UAS from them back in 2016. Placed my order in early February, had a tracking number by wednesday, recieved a call on a thursday saying the cross member would ship the following week, and by early next week I received another tracking number. By mid-Feb I had everything I needed. They are top notch items, and I would throw it out there that the wait time and/or cost is definitely worth it.