Still my favourite show. I hate it that people who grew up with (and loved) The Simpsons have stopped watching it. You can't say that the quality has gone downhill if you aren't watching it.
The early Simpsons seasons, yes, were amazing. They were iconic and they were a big part of our childhood. If you compare new episodes to what the Simpsons meant to you in the 90s, then of course it is not going to hold a candle to that. The Simpsons was ground breaking and made a huge impression on my generation (and a whole lot of other people). Are the new seasons as good as classic seasons? I wouldn't say that, but I also would argue that it is not fair to compare them.
New Simpsons episodes are for the most part good. In the range between B and A/A+
They are not the same as classic Simpsons and they are not all consistently the same quality, but I look forward to it every week and it rarely disappoints.
It is comfort food TV. It had been on for most of my life and has been a constant staple. In my opinion, still the best show on television.