Is he looking for an arranger or synth though? He posted "lightweight synth" in the title..., but if he's looking for a lightweight synth (and an arranger with good pianos and EP's) the GW-8 would go nicely with his other unit (as stated some limitations with the styles though).., but he'd be getting a synth and an arranger in one package that's lightweight...
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GEAR: Yamaha MOXF-6, Casio MZX-500, Roland Juno-Di, M-Audio Venom, Roland RS-70, Yamaha PSR S700, M-Audio Axiom Pro-61 (Midi Controller). SOFTWARE: Mixcraft-7, PowerTracks Pro Audio 2013, Beat Thang Virtual, Dimension Le.