I have ordered from robotdigg several times. Here is my take on it:
You add things to your cart and press 'buy'. Then you are greeted with a message telling you that your order will be calculated and you will receive a message shortly with paypal paying instructions. Its not the most satisfying way to feel good about your purchase. So I get an email with paypal instructions. You manually go through your paypal acount to pay him. The first time I did this, it was a $25 purchase so I took the risk. I will say I have received 3 shipments from him with no worries since then. He is trustworthy.
Prices: Cheapest for getting what you expect: Chinese quality. Its cheaper than getting each item individually on Ebay and receiving the same thing. The bearings are like any bearing not name brand: order twice the amount you need and test each one. And do not expect 5 years out of them either. Remember, your paying $0.60 for a bearing that normally costs $28.00 from Boca or SKF. Also, I have have had the heater cartridges from two hotends (from other people) go bad almost immediately. The heater cartridges from RD work great. Hundreds of hours and no failures.
Shipping: His prices are expensive, because he ships domestic. Guess what, anyone shipping domestic from China is expensive. Remember how payment occurs? He emails you the subtotal and shipping. I always email him back and have him quote me shipping China Post. And magically the shipping goes from $30 to $5. Yes, theres a difference of 1 week vs 4 weeks. But I already expect that from China. Its your choice.
Summary: I order from RobotDigg regularly. I consider the seller trustworthy. I am also an informed buyer and I know what it is I am buying. I have not purchased any electronic boards from him but I would expect the quality to be the same as Geeetech. But I have purchased alot of pulleys and belts, bearings and drive gears, and I plan to purchase a hotend the next time around.
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