Try it for a month before porting if you can - in the end it is still an inexpensive mvno and customer service is one of the places they cut costs.
Occasionally I'll flip to a different MVNO because they usually have new-customer bargains. When I started on Mint I was paying $15/month for 3 months.
The thing about MVNOs is that they have practically zero customer support - but apparently even that's been slashed at full-fare postpaid providers, so maybe I'm not missing much. Verizon used to have legendary customer service, but apparently no longer.
Damn you Ryan Reynolds for selling out.
But if you live elsewhere your experience might be totally different. If you live in a different NYC borough to me your experience might be totally different!
A lot of MVNOs offer eSIMs at least. An easy way to do a test drive.