For a 20x14 room I would go with VP100 anyways...
In general people who thought the VP150 sounded bad found that it sounded great when they pulled it forward so it wasn't "behind the edge of the TV". It's really meant for bigger rooms where (coincidentally) placement is usually pretty easy so I guess it's possible that placement is touchy but most people don't notice because their room is big and they don't have to stuff the VP150 in close to cabinetry etc...
Just guessing though. I have a VP100 and haven't heard the 150.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8
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