Deep litter coops shouldn't be stinky. That's usually a sign that it needs more shavings added, unless you have some type of water leak. If you aren't ever noticing any smell during the year, but it's stinky and nasty when you dig it out, it means that you didn't add enough shavings to the litter during the year. Try adding more and see how that goes, if you want to work at it until you succeed. Every coop has different management needs, depending on stocking levels and the local climate. Sometimes it takes a little while for people to learn the rhythms of their coop and how to manage the litter. I didn't get it quite right the first year, either.
No one needs to use deep litter, but if it didn't work for you, it doesn't mean it can't work for you. It just means that you needed to do things a little differently. There's nothing wrong with making a different choice, either. We all have preferences in how we like to do things.
We have an 8 x 10 coop. I designed the coop to have a door wide enough for my large garden cart to roll through. That makes scooping out the far end quicker and less tiring, since I don't have to walk back to the door for every shovel full. I also chose a cart that's well balanced. The wheels carry most of the load. I just tip it slightly to roll it. That's been fantastic for carrying heavier loads when doing other jobs, too. It tips like a wheel barrow, to dump it.
If you want to do quick clean-ups more often, have you thought about poop boards or pans under the roost? Some people put sand under the roosts, too. That can be easier to clean than shavings. You could do a sand box under there.