It’s an okay name.
I really like Luke, it was one of my favourite names as a teenager. But then everyone seemed to name their son Luke/Lucas in the 00s and I hated how popular it became. It’s literally number 100 in the Top 100 Boy names of 2019
Jacob is sweet enough, I’ve never personally warmed up to the name. Everyone seems to use it these days, so it’s pretty overused.
Overall, a nice enough name but maybe a little dull. The only concern I would have is the repeated heavy ‘k’ sound in both names, LuKe JaCob, which makes it sound very harsh and repetitive when said aloud.