FWIW, I also don't use any fancy collection management and barely understand what all these Lightrooms and XMP files are for. Maybe I should, but up to this day photos for me are just a bunch of files in the folder, that I sometimes manually group into subfolders like 2025-09, mostly to make it easier on thumbnail-maker.
It keeps the originals locally when it uploads forever unless you delete them. There's a one click "free up space on this device" button to delete the local files. It's actually somewhat annoying to export in bulk, you pretty much have to use takeout.
Immich put the joy back in photography for me, it's so easy to find anything, even with just searching with natural language.
Being able to scroll to dates with immich is golden. And the facial recognition is on device and works great.
I actually did the math earlier and the iCloud 12TB plan for a family is way cheaper than the equivalent s3 storage assuming frequent access, even assuming a 50% discount. so that's nice.
I use Cloudflare tunnel to make it available outside the home network. I've set up two DNS names – one for accessing it directly in the local network, and and a second one that goes through the tunnel. The Immich mobile app supports internal/external connection settings – it uses the direct connection when connected to home wifi, and the tunnel when out and about.
For uploading photos taken with a camera I either use immich-go (https://github.com/simulot/immich-go) or upload them through the web UI. There's a "publish to Immich" plugin for Adobe Lightroom which was handy, but I've moved away from using Lightroom.
The project as a whole feels competent.
Stuff that should be fast is fast. E.g. upload a few tens of thousands of photos (saturates my wifi just fine), wait for indexing and thumbnailing to finish, and then jump a few years in the scroll bar - odds are very good that it'll have the thumbnails fully rendered in like a quarter of a second, and fuzzy ones practically instantly. It's transparently fast.
And the image folder structure is very nearly your full data, with metadata files along side the images, so 99% backups and "immich is gone, now what" failure modes are quite easy. And if you change the organization, it'll restructure the whole folder for you to match the new setup, quietly and correctly.
It's "this is like actually decent" levels that I haven't seen much in self-hosted stuff. Usually it's kinda janky but still technically functional in some core areas, or abysmally slow and weird like nextcloud, but nope. Just solid all around. Highly recommended.
I love the immich success story but it seems like it's missing a crucial use case in my view: I don't actually want a majority of the photos on my phone. I want something like a shared album that me and my wife both have access to, and so we can share photos specifically to that album (quickly and without hassle), so we can do it in the moment and both have access.
I would probably estimate 90% Of my photos are junk, But I want to isolate and share the 10% that are really special.
My app failed, but I'm thinking about reviving it as an alternative front-end to immich, to build upon that.. But I feel like I'm the only one who wants this. Everyone else seems fine with bulk photo backup for everything.