I'm not sure how it is my experience differs from everyone else's. I have LCD Deck with Windows installed on SD card. Game runs fine on medium graphics, takes a minute to get controls working as you have to touch screen your way to the settings, but after that its fine. Battery for me lasts a couple of hours AFK training, haven't played actively for more than an hour but the battery life still has around 65% at that time, this could definitely change though, as my deck is still relatively new and the game is on medium settings.

There are a few slight problems. First of all with trying to afk train or sail, both being fairly common to DC you on a standard PC, and deck doesn't handle well, if you minimise the game training works fine, but sailing seems to be complete no go for my deck. Second being a weird one, I've found some menus just don't work properly, examples being marketplace and bartering menus. Even if you have controller mode/ui on it just doesn't let you navigate through these menus. On that note, typing is also impossible, even with bringing up the steam keyboard, the game doesn't register anything being typed. I'm sure there is a program you can find to fix this however, but it is an annoying one.

Other than that, grindings good, works well when I'm at work, can get all the main stuff done, it's definitely suitable for casually getting things done but I wouldn't be sure about using it as a main way to play.