I've been on pentasa for a year and 4 months, since I was diagnosed. I was on prednisone at the beginning to help out and then entocort later for a flare, but other than that, pentasa and only pentasa has kept me in remission (knock on wood). I am now currently 12 weeks pregnant and other than an AWFUL sinus infection with a four day fever that just broke, I am doing very well!!
And, I still have the feeling in my hands...I haven't had any side effects at all! It is a very mild drug and it doesn't work for everyone, but I'm glad it's working for me!! Good luck!