I've been looking into getting a Yamaha Portable Grand and wanted some advice. For those who own one or have had experience with these keyboards, what are your thoughts on the sound quality and playability? I'm particularly interested in how they compare to a full-sized digital piano in terms of key sensitivity and overall feel. Do they hold up well for practice and even small gigs? Also, any recommendations on a specific model that offers the best value for its price? Thanks!