I did Latin to Advanced Higher. Int 2 Latin was easily my favourite subject, though at times it was pretty rough since I was doing it as an 8th subject after school. Higher Latin was ridiculously easy, much easier than Int 2 because most of it is just going over Int 2 again. Int 2 itself involves a bit of a learning curve as far as translation is involved, but interp is very very easy.
Latin is the best kept secret in the Scottish education system: hardly anyone does it because they think it's hard, but it's very interesting, and if you're good at languages then it's basically 1st year level English, since the interp questions are about 3 years behind the level of Int 2 English itself because you have to do it on a Latin text. But once you've learned the Latin text, its like doing Foundation Close Reading on a text you've been studying for a year.