FWIW I just did the exact itin as @
ricohitman. The VT flight was delayed 45min, leaving us only 1:15hr at PPT. Luckily everything else went smoothly and we even had brief time in the lounge, but it was a bit nerve wrecking and took long conversations with VT manager to coordinate with UA.
I would have preferred 3hr or so connection, but the only options at booking were 2hr or something like 5hr.
VT claimed they moved all UA passengers to earlier flight but didn't know we were on the UA flight. I'm 90% sure I put the UA flight info at booking, but they say they didn't have it.