I always do a drive by, as the condition of the exterior of the home can often help you guess what the inside is like. But that’s definitely not always true.
One time I pulled into one’s driveway that looked super nice on the outside, (freshly cut lawn, clean landscaping, clean windows and siding, etc) and the neighbor came walked up and said he had the last remaining key to the house and asked if I wanted to go inside. (Looking back, I probably wouldn’t do this again… this guy was kinda shady.)
But I ended up going inside with him and I was so glad I did… because there was some sort of crazy water damage and all the ceilings had caved in and it looked like the whole thing g had been underwater at some point. I didn’t end up buying the property, but I was very thankful the neighbor let me in.
I usually just assume worst case scenario… because you really never know. And if it ends up being in great condition then it’s an awesome surprise!