I started two weeks ago and I definitely can feel it in my body... Training sessions (3x 1,5 hours) are quite hard, specially for a old and proud guy like me...
Most guys in the group have done MAs for years and have been doing BJJ from 3 months to 2 years. There's only two of us newbies, which means that we train and fight with the more advanced. I am not sure if I think of me as a pain in the ass because I insist they demonstrate their moves or as a relief since they can breathe for a while
If you are interested you can visit during one of the sessions and talk with the instructor; Rogério is a cool guy besides he is also working as a private entrepreneur, which means that you can work out arrangements in case you want to try for a limited period or have some other limitation. Just don't tell him I told you this... Feel free to PM me or ask bellow, ask for António if you go by.
Here's some more on BJJ from Bubba's post on another thread:
You can get the course information and Rogério's contact from here (Google translation)Bjj - It's a great system. It's very much like judo but be careful...In judo you spend most of your time standing and doing throws, hitting the ground and doing a bit of groundwork. BJJ is kinda the opposite, it's mostly ground work the throws are very weak and not emphasised at all. I'm kinda generalising...but sometimes you have to.
You will literally go to the gym and roll around on the ground.
Having said that, BJJ is very good at what it does...one of the best ground system out there. BJJ is also very strong, big organisations, lots of seminars...lots of trips to Brazil..I'll send you PMs about that!
The downsides...it is pretty much only ground fighting. So very one dimensional...not the best system for the streets. If you do end up falling on the floor in a 1-on-1 match fight...great. but that isn't likely to happen. The other downside is that it is pretty much a competition art so all the dirty stuff is out.
If you crosstrain with some striking it is awesome though. One of the good things is most BJJ is connected to MMA/NHB so usually the gyms will have a few sessions where you will train striking, stand up grappling and the ground stuff Or you can do just the BJJ and non-gi/kimono work...
But it depends what you want...If you want a self defence system I would say - 'No' or 'Yes, with crosstraining'...if you want some fun and maybe competitions and get in shape then 'yes'.