Separate grinder or built in

[tomc4all]

I am looking for a first espresso (regular, cortado, etc.) machine and maybe one that can even make coffee. The all in one machines from Breville, Philips, and most others, have a built in grinder. From what I read, overall, a separate grinder is better. Well, are there some machines that actually do use a significantly better internal grinder such that if that going all in one is what I want, I am not sacrificing much? I thought some of the Philips machines might be OK, or others, but I do have a good grinder if it really is much better. Any help would be greatly appreciated.