I do not like the EM series at all . I will try to see the EM55 at NAMM .
The Em15 is going to have to be priced at $189.99 for it to compete with Yamaha IMO .
The Em25 will need to be $339.99 !
Best bang for the buck is the Yamaha EZ30 !
This $280.00 keyboard is great ! I bought one for my kids to get involved with music . IT has the same sounds as the PSR550 . The light guide system is helping my son + daughter ( 7 + 9 yrs old) memorize songs ! It's also light enough or me to carry around . Check it out ! Dano