Hey there. I brewed my Robust Porter back on February 9th (my thread about it is here), so I might be able to offer some help. I brewed a Brewer's Best Robust Porter kit, the recipe is in the thread.
When I sampled from my hydrometer, after racking to secondary, it was not foul at all, though there was a little hoppiness to it. On bottling day it was maltier, and now that I've had it in bottles for six weeks or so, it's delicious. I'm preparing to crack into one (or two or...) today as I brew my Seattle Pale Ale.
I would definitely recommend letting it sit for a while. After that, if you're still not happy with it, well, it's your beer. But beer would have to be pretty bad for me to dump it.
Primary 1 : (empty)
Primary 2 : (empty)
Bottled: Pumpkin Ale, Ed's Apfelwein IV
Kegged: Irish Stout, Northwest Pale Ale II
Thinking about: Rye Ale, Russian Imperial Stout
Gone: Robust Irish Porter, Ed's Apfelwein I, Ed's Apfelwein II, Northwest Pale Ale, Ed's Apfelwein III, English Brown Ale, Blanche de Chambly clone