choosing a closing agent & title insurance

[Long Yang]

Hi BP community, got the contract back from the seller, which is a RE service company. I was given the option to use them as the closing agent or choose my own. Should I be worried there will be a conflict of interest and choose my own and spend the money to have a peace of mind? Also regardless of who the closing agent is, should I definitely buy title insurance? Thank you in advance for the help.