I can get by with them but prefer other blades. I had a pimple on my chin this a.m. and didn't notice it. My feather lopped it right off. Bled a bit but I didn't even notice it until I saw the red. Hadn't cut myself in so long I wasn't used to seeing that color at that time of the morning.
I haven't tried the Personna reds yet but I hear great things about them. I went retro lately and have purchased a 65 Gillette slim, a 48-50s model Super speed, and a 55 blue tip. No cash for anything else right now.
Sounds like you are getting good results now. If you are like me, you will want to try all the soaps and creams that others rave about.