Not at all, it's just a good value as a place to relax and work in the winter, I don't find the well-fed Thai︀ females there attractive, so I spend time on my projects instead. It's not far from︁ BKK, easy and priced well,. Any non-island beach close to BKK will be crap.
But as you say, there are much better places, it's just convenient, And from BKK there︂ are cheap flights to everywhere, good as a base.
For beautiful beaches it's the islands︃ on the west side of South Thailand, Koh Rong/Saloem in Cambodia, little islands in the︄ Philippines, or untouched beaches in Myanmar. I think Sri Lanka is a great option for︅ that too, as some suggested here.
I stayed in Mui Ne︊ for a while, while having an apartment in HCMC for a year. It's actually really︋ fun with an own motorbike, the actual city has a nice shopping mall, and there︌ are lots of interesting places all around, not just up and down the beach road,︍ but inside the mainland too. Easy to make friends with locals, and the 1 kg︎ lobster at a local place was just 100,000 VND cooked and served, less than $5.️ As you say, with Hoi An being so close to Danang, one being small, and the other one a real city on the coast, one can choose the place that suits one best.
I'd also add Tunesia and Morocco to Egypt, but all of these countries have a special hassle factor, which might interfere with having good time. Cape Verde might be more interesting, if one doesn't care about old︀ stones and museums.