"I ordered the wrong one, they exchanged it no problem. Fast shipping. They were highly recommended and fixed my mistake no problem. "

"Great selection, good prices, and fast shipping."

"I ordered filament roles that were on sale and they sent me a mail saying they could not be delivered. Yet they were still for sale (and on sale!) on the website."

"Have now used 25 litters this year so far for their 405 nm uv resin in my 15 resin printers of many different makers and it has performed well.
Used In machines
Anycubic Photon and Photon S
Kelaint s400s
Elegoo Mars
Peopoly Phenom
Phrozen Transform"

"Items listed and paid for were not in stock. Had to wait on refund. I don't care for that."

"Product was shipped quickly and I love the quality of their stuff .i have there CNC3018 I will buy from them again.
Keep up the good work you guys rock"

"Ordered 4 rolls of filiment, one ended up being out of stock, I picked a dfferent color. Arrived in 3 shipments, 10 to 16 days for shipping"

"My Ender-3 PRO arrived with a faulty micro-chip reader on the motherboard. I e-mailed customer service on a Monday. The New motherboard arrived at 12:30 Thursday all the way from China. My issue was easy to handle and resolved super fast."

"all as expected everything fine"

"Sainsmart TPU is simply the best there is! My order was shipped quick and arrived right on time, even half came from over seas! Customer service and communication was top notch as well. What more could you ask for? I have been using Sainsmart TPU for about a year now, extremely durable and great for protecting and even gripping/vibration dampening projects. Highly recommended! "

"The seller canceled the order with no communication telling me they had done so."

"I have the 3018pro. This is my first time using cnc machines. Although the learning curve was difficult, this little machine has been a great intro for the money. I've had a few minor issues, but their customer service (specifically their facebook messenger support) was always quick to help me out and correct the issues. I was so happy with the product, I ended up purchasing a second 3018pro. "

"Fast delivery, well packed, everything ok."

"I have what seems like a simple, newbie problem. I contacted Sainsmart support 5 days ago, but I haven't gotten any meaningful response. I'm in touch with a rep named Hong, but he seems to be dependent on other people who haven't responded to him.
Meanwhile, I can do nothing. I finished the build on my Prover a week ago, and all basic operations of x,y,z work fine, but I can't get any gcode (including Sainsmart's included examples) to execute beyond the first couple of lines of code, at which point it stops with an "alarm" indication on the offline controller. It's probably something very simple that I'm doing or not doing, but waiting this long to get an answer is frustrating.

By contrast, when I've contacted support for my Creator Pro 3D printer, I've always gotten a response the same day, frequently in a couple of hours, with a full answer, sometimes with explanatory photos."

"No problems at all ........."