Sokol M.

In my experience i have found solution because locally problem to find some products that are with specifics like parts for tablet, laptop, and other tools, accessories, etc. also skipping abused prices that locally common used for different products.

About the quality of products sure need to know what exactly you are searching for. And if you need cheap products can't be expected high quality. Also i can say that is not the high price that decide that product is good, you can't take like reference.
Need to search for specification of products that you need also to read the specification with details, because in this way you will know what you will get.
Most of the time i use the communication with seller as you go to the store physically

Easy way to make a payment, easy to refund,
When i receive the products like Digitizer, screen, parts for computer, etc.
I use phone like video recorder in the moment when i open the products, also i record the moment of mounting parts. In this way i can prove that everything by my side was correct if some parts fails or are damaged.
In the case when i receive the damaged products. First i start to communicate with seller about the products and usually they will find solution to send another if the proves are ok, if i don't have time to wait for another, they will turn the money back. If not it's easy way to open dispute and upload the photo and video that already recorded and receive money back. Full refund.

What you need more?
I like, I use, they can go forward with filtering of sellers that are not good.

Nice!

Based in my experience when i go to alibaba browsing for products is easy because you have chat for every store and easy can get the information that you are not sure.
Also about the payment, i have used Trade Assurance for transaction because in this way i have guarantee for refund.
Never needed to be worry when you have to pay through Trade Assurance.

Sure need to be careful with every company, checking review, testing about what they saying about the product, you need to be sure that you are getting the answer of you question, also need to get with details of product that you are searching for, because you will find some person that tried to not tell the truth.

When you are clear about what you need, also you are convinced about the product that you need and you founded, go through Trade Assurance. Ask seller to add the product with details to alibaba because in this way you have the prove of what you have ordered also again be safe to make a payment through Alibaba