We use ours a lot. Much better than the resealable bags.
Get a good book on freezing vegetables. What you are after mostly is the blanching time, but some things, like broccoli, need to soak in salt water to get the insects out first. Just follow the instructions up through and including blanching.
That vacuum sealer does not handle moisture well. I know it has a moist setting and that helps, but it just will not seal if the bag is wet in the sealing area. Drying everything off can help, but it will pull moisture from the food when it is pulling the vacuum. Experiment with it a bit and you will see what I mean. If the contents are too damp to be able to seal, I fill the bag and put it in the freezer open. After it freezes, I take one bag at a time from the freezer so it will not thaw (well, sometimes two bags at a time) wipe the ice and such around the sealing area inside and out and then seal them. I still use the moist setting as it will probably pull some moisture from the frozen bag. And watch that insert in the area where you put the open mouth of the bag. Sometimes moisture will build up in there and have to be emptied.
When you trying to seal the bag, make sure the open portion is well into the vacuum section. The bag can slip out a bit when you close the door. If all the opening is not in the vacuum section, it will not be able to pull a vacuum and can burn up the motor. If it is in right, it will pull a vacuum pretty fast so you will quickly realize it is not in there far enough. Just hit one of the control buttons. It will stop and you can start over.
Don't fill the bag too full. It takes more room from the vacuum section to the sealing area than you would think. Also when it pulls the vacuum, the bag sorta shrinks, getting pulled up toward the sealing unit. Just experiment with it a bit.
You can either get bags ready made or get a roll where you can cut the bags to the length you want them. Using the roll, I seal the bottom of the bag before I cut it to length. If you are like me, the first one you cut will be too short. There's just more room between the vacuum area and the sealing area than I think there should be.
I think you will enjoy using it. It does keep food a lot better than the ziploc type bags.