Yes, I've used it. About 2-3 years ago last time. I initially got Priligy following consultation with my GP and then several times through repeat prescription. I would recommend it if your partner is feeling desperate and, frankly, useless.
I was - although, as you, my partner reassured me that it was OK.
However, perhaps inevitably, there are some downsides. One is that you have to get the timing of taking the pill and intercourse just right. More or less than 15 mins and there's only limited effect. Another is that as the sensation in the penis is dulled, sex doesn't have quite the same intense and intimate magic.
A final one is that on a couple occasions I couldn’t come at all.
But, bottom line, I could go on for longer without coming - it works. And that was important to me, so I recommend it on that basic level. Perhaps only though as a temporary measure. By taking it, I lost most of the apprehension that was preoccupying me - and possibly exacerbating the problem. It got me to a place where I could relax again, enjoy sex and then find ways - like having the confidence to slow down whilst my partner used a vibe on her clit - of prolonging the pleasure of love making. I suppose it helped in the realisation that sex changes as you get older, it just isn't going to last as long when you're younger, but can still be fantastic.
Finally thought, my liberated GP recommended something that I suppose I knew but had forgotten about with all the angst: having a drink before having sex. For some reason, I’m sure there is a biological explanation, in moderation, a couple of glasses of wine, it does increases ejaculation control.