What was your total spend - time and money? I just got a quote from a local company to do it.
Consumed materials it was like $210. The brushes were like another $15 but I can reuse those. I bought a mixing drill bit attachment that was like $8. I also bought a pressure washer and leaf blower which were $40 and $15 used.
My driveway is 2000sq ft. It's fairly long and had a large square block area in the back. From what I read most normal driveways can be done in a weekend. One day crack filling and cleaning the driveway then the next seal coating it.
For me I broke it up alot more because I knew my body wouldn't take trying to do it in hard long hours. Also my dad left his old car in my driveway and now the registration has lapse on it so I couldn't just put it in the street for two days while I did the whole thing. So I split it into 1000sq sections.
Crack filling took 1.5 each of the two times I did it. Waiting like 20 minutes for it to melt and just over an hour of finding cracks and filling them. I think this was where the most savings really was because they charge by the linear foot to do crack filling and it would have added up to alot. I think each box does 200 linear feet so I probably did close to 400ft.
If I had a better pressure washer I think it would have been alot quicker, it took me probably 2 hours each of the two times I did it. That also included leaf blowing. I'm really not sure how long a good pressure washing would take. We had to brush it down with soapy water so that took a while and the pressure wasn't great so getting the dirt to move down the driveway was time consuming.
The actual seal coating took 2.5 hours each time. Once you find a groove in doing it's the easiest of all of the stuff you need to do. The narrow but long part of the driveway was easier to do mostly because I didn't have to constantly move the buckets around. I could push them back with my foot a couple feet as I was going.
So probably 12 hours in total to do 2000 SQ feet. The amounts of cracks and how many you actually want to fill could reduce this. Also a good pressure washer would bring it down too. The professionals use those large walk behind blowers on wheels which might let you get away with not washing your driveway at all but I think professionals sometimes use a different kind of sealer.
If I were to do it again I'd do it on a cooler day in the mid summer. You can use a cheaper sealer, the one I got could be put down when overnight temps go to 40 degrees, normal stuff is 50-55 for night time temps. That would save me about $50. Also there would be less leaves to deal with. Getting wet from washing the driveway might have been nicer in the summer than when its in the low 60's.