I tried the Dive Rite bifocal readers. I liked the position and quality of the bifocal inserts, but did not like the mask overall. It was comfortable enough, but the main lenses are quite small, resulting in a restricted field of view compared to my Tusa Freedom HD, so I returned the Dive Rites.
I have since found that the Trident Diveoptyx stick-ons work well for me—easy to apply, stay on, optically good enough. I had previously tried the Trident glue-ons, but they kept coming off after a few dives. The Diveoptyx have stayed on for dozens of dives so far. The trick seems to be to allow at least 24 hours to dry after application.