Well, it's good for starter toys or fingers i suppose, but i wouldn't suggest ONLY using it for more serious play
I prefer K-Y,its a great proven luberacant for decade used by Doctors and professionals all over America,non oil base great for condoms also,non allergic,I once was out of KY used Avon Watermelon body cream,got a bad rash on my glans so bad I had trouble rolling back my foreskin so I learned the hard way,no pun intended,to always pleasure myself and enjoy anal,vaginal intercourse with K-Y and use Trojans non lube condoms for Fellatio to prevent HIV,STDS,no Barebacking boys and girls
For me the pre-cum doesn't really start flowing until 15 - 20 minutes into things. So by all means if there's enough foreplay time then great. But by itself I don't find it to be enough lube, at least to get past that initial entry. I see porn sequences where they don't use any lube other than some tonguing or something and am must amazed. I guess those girls are just trained enough or prep with an anal dildo for a couple hours before, or both...