Pro Sites Stripe still in Beta?

Hi, I am planning on using Stripe as the payment gateway with Pro Sites:

1. Is there a reason it is still in “beta” even though the feature was added well over a year ago?

2. I currently use Pro Sites but with the basic Paypal setup. Is there a preferred process of switching to Stipe? Is there a safe way to transfer the data or will my customers have to reenter their payment information?