Took me 3 tries to really know how to use this and make takoyaki. Here are some of my recommendations: use some oil spray generously so that the balls don't stick to the surface. On my first try, I made the mistake of being stiny and using too little that the batter stuck. And being new at it, I used the utensils and scraped it off. I left some scratch marks as a result. My second advice is to let it get hot for a bit, maybe like 3 min after you turn it on. Once you pour the batter, wait a few min until the batter stops looking so liquidy. At that point, you can start trying to rotate the balls halfway and do the usual takoyaki process of rolling them around so they are cooked. Pour more batter so that it becomes a full ball rather than one that looks deflated.It is very light and portable. I took it to my friend's house and made takoyaki easily. It's easy to wash and the batter doesn't stick too badly so long as long as you're generous with the oil. Once you start cooking, you shouldn't take your eyes off of it and go anywhere as the heat is consistent and you can burn the takoyaki if not careful.Overall, pretty good quality and recommend it to other folks!