I am just finishing up my 4 year contract in the Army as active duty. First National Guard training facilities is the exact same as normal Army, that means when you go to basic you are gonna go to either fort knox, fort benning, fort jackson, fort leanordwood (forgot spelling), or fort eustis. You will be in basic training with both Active duty Army and Reserve soldiers, you do not have any different training than us. If you go to knox or benning normally you will endure tougher training as they are all male and have much lower limitations than with women, the reason why the mixed training facilities are easier is simply because women have hygiene issues that limit training just a bit (eustis is all male but I don't know much about it). Either way it won't be easy.
Second you will have drills once a month, 2 days in a weekend and 2 weeks in the summer. Now here's the tough part, you no longer have soldiers waking you up in the morning for PT so now to pass your required PT tests you will have to keep in shape on your own. However your other option is to go Active Guard, this is essentially the same as Active Duty since you will work on a daily basis and this will be your full time job. The difference is you will be stationed near home instead of wherever the Army sticks you.
Ok now I was active duty though I shared a lot of time with the Guard, your advanced training, Air Assault, etc will all be shared with Army as we all train together, it is essentially no different. Deployment is pretty much just as likely as us, if you think going guard has less deployment probability then you're wrong I have seen many guard guys in Afghanistan and sometimes have longer deployments than the normal soldier. Now that the wars are winding down though I imagine every soldier is less likely to be deployed. If you really have any more questions I can probably answer every one just message me
EDIT: Your main duties during the weekend per month training are simple drills or work in your field. From what I understand most of the work goes to the active guard guys though since they are familiar with their job, while you may have to do drills to ensure that you are on par with army standards. The 2 weeks in the summer usually involves some travel and doing more intense training or working. Another option you guard guys have is a work form, you can work a certain amount of hours throughout the week with pay without being active guard. This is a good idea if your unsure if you wanna have this as full time but would like to keep up with your job and be of actual assistance in the field.
Educational opportunities are better with guard since you get tuition assistance however you will not get the GI Bill. Also, Guard contracts are typically 6-8 years while ours are 2-6. Just be sure you're making the right decision and ready to make the commitment regardless of the branch or sub-branch you choose.