Much more relaxed and traditonal.

However, I may well attend at some other time, due to work schedule or other commitments.

My church has 8:00 and 10:30 services. I only go to the early service if I'm involved in the music or otherwise "have to".
We go to 1 service at 9:00 in the summer and attendance declines. A few of our local churches are going to 1 service (9:00 usually) due to declining attendance. Our pastor does not want to do that year-round. His reasoning (I agree) is that people prefer either early or late, and in-between pleases no one and we'll lose attendance.

...the Saturday Evening is my usually-scheduled Mass.

My previous Catholic parish I was always scheduled either for Sunday evening or Saturday evening. Or I was scheduled as adult server, sacristan, or usher.

But if I go in the morning, 10-11 is usually it. I go to work at noon so it's actually earlier than I normally get up, but it's still not that early, and I don't have to do much before, just have a snack, jump in the shower and throw up on some clothes.

Small, liberal Mennonite church in a college town, about 30-35 attendance. We have Sunday school after church, both children and adults. Part of figuring best time for a service depends on Sunday school, and whether it's before or after the service. One advantage to after is it makes for an easy-to-plan adult class - discussing the morning's sermon.

Sometimes I'll go to Sunday evening Mass (they offer that at a parish nearby), but as long as I'm able to go on Saturday evening, that's my choice.