While I'd agree that the cleat angle on the stock Bravo block leaves a bit to be desired, I don't find the mainsheet interfering with the tiller if I remember to keep it above the tiller when I tack or jibe. It's easy to let it get underneath until you get into a habit. I also find myself rarely using the cleat now unless I need a free hand for something. The sail size never strains my arm too much and if it was windy enough to do so, then cleating it would be a recipe for a swim in my bay where the wind is always finicky.
The Bravo is so small and thus so sensitive to the slightest changes in wind speeds and sheet & tiller adjustments, that I find it much easier for one person to run both the tiller and the mainsheet. I've tried handing the mainsheet to my wife, just for fun and to teach her the feel of where the sail should be in relationship to the wind, but it does get complicated quickly in such close quarters. However, if you are spreading the fun, have at it!
Just some observations from my first year as well.