Great surprise
I was looking to reduce cost on a new complex design (differentials pairs, gold fingers, pitch small as 0.3mm, lots of edge connectors, 105x265mm PCB dimensions). I tried multiple kind and size of manufacturer and was never fully satisfied due to sometimes, quality over long period, customer support, special requests, price or lead times. I don't have much experience with PCBGOGO over the long run (meaning more than 2 years) but for the moment I'm really satisfied by the 3 different PCBs I produced by them. I find their contact and customer support is really good, fast response time, very compliant with specific requests and also technically they are experts. I read some of the bad reviews but based on my own experience I will firstly incriminate the source design. I've seen most of the time even by experienced engineer that they tend to put the blame on the PCB and assembly manufacturer. Most of the time they didn't adjust or comply with the manufacturer possibilities. I would clearly recommend PCBGOGO for a fast, cheap and professional PCB assembly.