There are few things on Paypal which sellers don't like:
1. Chargeback Period is so long ( around 180 days)
2. Dispute Period (Dispute period takes up to 40 days to get solve.)
3. As Seller, there is very less chance to win the dispute or chargeback( seller can win the case only if they have reputed account on the PayPal history)
4. Sometimes people take service for the whole period and open chargeback/dispute and they win the case because some of the sellers unable to provide the sufficient proofs in the case, which really demotivate the seller's business.
But still, Paypal is very popular payment gateway. There is no such big alternative of PayPal yet. If you have the online business you don't have any option other than to use Paypal.
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