That's correct, but by fine tuning the scene you should be able to adjust to your liking......the presets are cool but I highly recommend the "power user" option.....
Only reason I suggest MaxxFX is because I love the effect it can have on the clouds and the overall scene......
You can actually save your power user presets and share them, if you find a good balance with it I encourage sharing the preset, it could help a few others that feel the same as you