Love marriage, knew her for 6 years, divorced after 2 years of marriage since we wanted different things from life.
I can only tell you a few things:
Try to marry after 28/29 - In general, people evolve and dont really know what they want in life before this age. You may agree something before marriage but then a few years down the line, people may want different things.
Don't think with your dick - this is the hardest to do. 23.5 hrs >> 0.5 hrs of fun. Looks should be a baseline, not a target.
Trust your instinct, I feel 2-3 months of regular conversation and 4-5 meetings are sufficient enough to build an opinion if you can live with the other person or not. You need to take a leap of faith.
Dont get emotionally attached till the pheras are done