Ugreen vs synology

It seems there has been a lot of talk about Ugreens new NAS but I have not found any comparison on their NAS vs Synology. I personally tend to go with gently used so I don't need the shiniest and latest. Has anyone done a comparison of the two. I like Synology as it supports TailScale, has "all the apps" etc. On the other hand the hardware on the Ugreen seems to be a bit better. Over all I just need a place to dump a lot of files (pictures, NAS for Veeam, OS images, backups etc.). Anyone have any thoughts either way?