I am one of few who doesn't mind feeling every nook and cranny in the road, I drive with H&R SuperSports and Tokico DSpecs usually set close to full stiff all the way around. I like my car to feel super tight handling wise, but I think I pussied out with these urethane mounts. But time will tell.
My stock rubber ones were shot, split on one side and cracked on the other on my car with 125k miles. The urethane ones smoothed everything out drastically and I enjoyed the feeling with them on, but if solids offer that much more tightness in feeling your car I think I should have got those.
My opinion is if you like a smooth steering wheel and smooth acceleration feelings from your car go with the urethane ones, but if you like super tight and slight vibrations, go with the solids.