It's free (freedom & beer), it has no ads, and it's feature-complete. It even has stuff that other websites make you pay for, like post-game computer annotation. It offers a web interface where you can play without even registering an account and free (again, freedom & beer) apps for iOS and Android.
The only downside when compared to chess.com is that fewer top-level professionals play there. Which is not an issue unless you're literally a super GM.
Lichess is amazing, I play there exclusively. However, I am plagued by a terrible bug: the Android app has half a second of lag when opening any screen for some reason.
It doesn't matter what connection I'm on, and the website is always instant, but the Android app always takes half a second to load any screen. It's infuriating when you want to view the analysis, or just navigate around the app.
I've taken to "installing" the webapp version on my phone. It's only a little bit different, but doesn't come with the frustrating issues the android app does.
I have a similar delay bug with the website itself. I've not reported it because I don't use my lichess account to play actual games, only puzzles. The lichess boards will only let you post a new thread if you have games on your history, and I refuse to comply as I've played thousands of puzzles and I should have clearance, and yes that's petty, anyway...
My bug is about Puzzle Storm. When you run out of time, the GUI shows you the post game screen and it takes a fraction of a second before it pops in a "daily record" banner. This fraction of a second is slow enough for me to drag my mouse cursor over the "Failed puzzles" filter, but fast enough for me to accidentally click "Play again" as it has been pushed down the page (by the daily record div) without me perceiving it yet. Once clicked, that button resets the page to start another puzzle storm and by then I've lost the failed puzzle history, so I can't go over it anymore.
It has happened already in the hundreds of times. I can't help it, hopefully the dev one day figures it out.
Have you tried disabling content blockers (including PiHole if you're in the app)? I'm not on Android, and haven't seen this but in Lichess, but when I see similar bugs on iOS, disabling content blockers often fixes them.
It's free (freedom & beer), it has no ads, and it's feature-complete. It even has stuff that other websites make you pay for, like post-game computer annotation. It offers a web interface where you can play without even registering an account and free (again, freedom & beer) apps for iOS and Android.
The only downside when compared to chess.com is that fewer top-level professionals play there. Which is not an issue unless you're literally a super GM.