I've been reading up on case and these two seems to be the one for me. My two biggest concerns are overall build quality (I've heard mixed reviews on the poetic) and the magnets affecting the S-pen (issues with both I think). The tablet is primarily used in landscape mode and I would have the screen flap flipped all the way back. Do either one of these hold the flap when held in this position without putting the tablet to sleep? The odd time I'd like to have the tablet propped up for watching movies, so how the case holds up in this situation is important too. Would love to get so feedback on both from those who have experience with either. Thanks!