To get serious golf course quality grass takes a lot of commitment and time.
I'm a yard nut and have no where near that level of turf, but I'd say I'm better than about 98% of the neighborhood.

This is my new house, sod is about 8 months old. It's a hybrid Bermuda, probably TIF 419. Never bothered to ask the builder. Still using a rotary mower since its way too bumpy for a reel. I plan to level with sand in the future. Lot is a 0.25 acres, takes me 1.5 hours to mow, edge and weedeat.
I mow 2-3x a week as low as I can go without scalping too much on the bumps. Bermuda grows fast in the heat. Any longer than three days right now and I'll take way too much off the blades. Could use Primo to slow the growth, but I like the exercise.
Pre-em 2-3x a year.
Slow release high nitrogen fert every month from May to September.
Milorganite every month (two weeks after fertilizer application). Good for the soil.
Deep watering once a week when temps are high 80s low 90s. Move to 2x a week when we are high 90's and above. Much better to water deeply once or twice a week than to water shallow 5-6 days. You want to promote deep root growth.