I think this is great - and this is coming from someone who loves good design and UX.

They are successful because they solve a real, substantial problem for millions upon millions of people, not because they've got the prettiest website or following the latest design trend du jour. They are in some ways antithetical to modern startups: that seem to be in a race to solve ever more inconsequential problems in minor ways using the best UX and design.

Their website is ugly, their mobile app even more so, but yet they solve a problem and solve it very well, so people including myself keep going back. If only more companies would put this much quality into executing their core.

Probably because their core competency is allowing people to make restaurant reservations, which they happen to be really good at, not Android app design, which just has to be good enough enable the former.

I can't speak to their Android app, but as a customer, I've always been very satisfied with OpenTable. To the degree that I'm now annoyed if I want to get a reservation at a restaurant that doesn't support it. I believe from the restaurant owners' sides, there are some pretty legitimate complaints, though.

They seem to have a newer one https://play.google.com/store/apps/details?id=com.toptable