If you're going to Samui then take the seatran if possible. The ferry is much better and stops in Nathon unlike Raja that stops in miles away in Lipa Noi.
Really hard to get to Samui sometimes. The lines can take up to several hours, better be prepared for a long waiting, even they have got a small shop (water and snacks) on a pier.
Less queue comparing to Seatran. Feb 2021 - passenger 140THB, car 450THB. To rent any vehicle - Hakuna Matata Rent 093-574-9587 (WhatsApp, Telegramm, line).
People, if you wanna bring a car with you please book in advance! Or you'll have to leave your car at the pier like I did. The whole service is a nightmare.
Do not buy transfer tickets (ferry + bus) to Surat Thani airport from SamuiTour desk at this pier. They overcharge (450THB) and you will need to switch busses twice along the way (long detour!)
they don't even care to wait for 60+ passengers who just get on the bus at 7.. they said it's already delay.. for god sake! we did not take the plane you stupid service people!