Comparing to Japanese, Russian is far easier to read and write, but you'll face the same problems with non-latin characters etc. Basic grammer is very simple, but in order to advance you'll have to memorize a lot of exceptions from basic rules - it's a real pain in the ass.
Try talking with english-speaking ppl here ang get their opinion:
http://community.livejournal.com/learn_russian/
P.S. Comrades at 2ch.ru will welcome you anytime. ;) Для великой победы!