I hear you, but a few points in response:
- The greatest number of bugs are typically introduced on major upgrades, such as from ios9 to ios10 etc (as is true for all large OS's)
- A lesser (but decent) number of bugs are typically introduced on all updates including significant new features, such as 11.1 to 11.2. But other bugs are fixed at the same time, so there's still some net down trending of outstanding bugs on these releases.
- The total number of outstanding significant bugs trend lower through each bug fix release release, such as from 11.1.1 to 11.1.2 etc.
Of course, these trends are the same for every developer of major operating systems,
- But these trend lines are never completely smooth and there WILL be some hiccups. One hiccup was this dec 2 bug, which was unusually painful for apple and the users affected by it. This hiccup, and the subsequently early release of 11.2 probably means that 11.2 is less solid than it would have been if it hadn't been rushed out at this time.
I think Apple was right to rush it out given the circumstances, but its probably a little riskier than usual.
My experience of IOS 11 thus far been very, very good, as it has for my friends. But I know that's not true for everybody. I do believe it will generally get better and better for most all of us.