Yes, I've got it. The only time I had to go to the ER was when it first happened. Other than that I take metoprolol succinate and it controls it quite well - a few small flare ups, but a 5-minute rest and its back to normal. I do see a cardiologist once a year for it (and prescription renewal) I might ask him if its possible to build up a tolerance to the metoprolol as flare ups seem to happen more often.
I have done a few short bike 'credit card' tours and haven't had any major issues (not yet); occasionally I'll be short of breath and just get off the bike and walk a little. Its credit card touring, so no big loads on the bicycle, and I usually plan for 50-60 mile days, not the 70-80 mile days I used to do; if I want to do more in a day I usually plan on some side excursion along the way to a scenic site.