my previous experience with a newly graduated lecturer as my SV is a huge headache! and some of my colleagues in the same lab have the same bad experiences.
I cant assume every newly-grad lecturers are the same but think twice, perhaps talk to some more senior lecturers before you decide

try to have a nice discussion with him/her, or the best way, find an experienced one.

my previous sv had 5 students (2 phd, 3 master). now only left one master student continuing with him. others either find a new one or quit directly