To port, or not to port?

[Luck2U]

My wife has a 6cm tumor, is er+, her2+ "maybe" (they are retesting using FISH since her tumor is grade 1, yet is her2+, which makes the pathologist suspicious as to the efficacy of the IHC test). The onc is recommending chemo to shrink the tumor. Reading the forum posts, it sounds like ports are problematic for some. My question is, are most of you with ports ok with them, and if not is going the vein route even less desirable? Also, I'm wondering if they dont do any surgery now, how do they know whether for sure whether or not the nodes are involved? She had a PET scan, which did not show any node involvement, but I guess the gold standard is through the eyes of a competent pathologist.; just wondering. Any and all feedback, as always, is very much appreciated. Thank you