It depends on your goal. If you just want to have fun, you can play any mode you like.
The downside of 1|0 and anything shorter than 15|10 is that you will probably not improve your game too much, because you will not be able think about the position at all.
hello I just started playing yesterday. i read that the the 15|10 is good for beginners but it's just so long and boring. is it okay if I play 1|0 instead? is it a bad habit? thank you