Just my 2 cents.
The combo works fine for me,but I do recommend a 16g when you are pushing 2" nails/staplers into hardwood.
The one I have is a Central P31317 for 16g 2".
Plus the DeWalt D51238 for 2" 18g.
The mechanisms are the same but it takes a bit of a learning curve to use it,I'm sure you will put your share out the side of the stock until you get it down.
I have about 20 or so nailers and staplers you can't have to many, they are like clamps.
And then again it's not the nailers or staplers it's the nails and staples for them that will get you in the $$$$...It's like the router bits will get you in the $$$$.
I have the nails and staples in a box that takes a 2 wheeler to move around the shop at one time I had them in a wall box until it fail off the wall with 200lbs of steel all over the floor,,,,... hahahahaha
anyway the combos are great and they are reliable/durable as long as you keep them lubed up.