No problems at all, I did an in an out, elected to let the Cambodian side take care of all of the paperwork, all fees, in and out plus visa was 2700 baht, Don't know if I could have done the in an out without an extra fee, back in 2017 it was 300 baht, I just elected to pay the extra and get it done so I could get off to Immigration and sign up for my O Visa, no more OA for me.
Can't remember how long the drive was I live about fifteen minutes east of Ban Phe, took Sukhumvit 3 towards Chanthaburi and took a left I think it was less than an hour and a half.
Would have been a real quick trip but the wife wanted to come with so she could donate to the Casinos