I can use this app very much the same way I use Google Keep, which is great.
One thing it doesn't seem to do is the absolute godsend that makes Google Keep special- when you search for a keyword, it doesn't just search the comments you entered for that picture, it searches the words it sees in the picture itself.
Example, when I take pictures of dataplates or business cards, I don't have to write in the comments section. I know when i search for that company name, Keep will scan all the pictures and find the words it needs to. It happens instantly, and it's wonderful.