It isn't very easy either way! Especially in a small garage or worse yet, in a driveway. Getting the car way up in the air helps a ton. Don't use jack stands, have the tires resting on blocks. A transmission jack is 10x better than a floor jack so if you have one use it. If you don't have one then borrow one or rent one.
Take your time, be safe, ask help from a buddy or two when the time comes to actually pull the transmission out. Unless you have a very complete shop it isn't a one man job. I used to pull the full front suspension off of cars with my floor jack as well as install transmissions and engines by myself but I had a lot of tools as well as an overhead crane. If you don't have a ton of tools then you need helping hands to stay safe.