I use them for regular trips to visit my family, a short flight away. The face value of those tickets is around $180 round-trip for non-holidays, so the bonus is getting me 8 of them or so! My husband also signed up for the CSR, so we can go together.
I usually pick a flight that works for me, and then check to see what's the best use of my points. If you fly United, check how many United points it would take to buy the flight, and compare to buying it directly through the UR portal. Depending on the time/reward seat availability, one could be cheaper than the other. When I fly Alaska for my short-distance flights, I usually check to see if there is a British Airways reward seat available; if there is, sometimes that's fewer points than the UR portal and I'll transfer the right amount of points to BA. Lately though, it's almost always been cheapest to use points directly from UR. Plus, there aren't any of those dumb fuel surcharges or other fees in the UR portal, because the points spend like cash. Another benefit is you get the butt-in-seat miles on your frequent flyer account - if I book an American Airlines flight through UR, I get AA points for the flight because to AA, it looks like a flight I bought with cash. If I transfer to AA, it's a reward flight and I don't earn any miles for the trip.