I have just bought a Tacwise air driven coil nailer for doing fencing, making trellis etc - I already had the compressor so that made the decision easier.
It's been very good so far and running costs are way cheaper than than paslode etc.
If you doing a diy job then get your self a hammer. Estwing are good.
After that if you are in a workshop then air is the way to go.
My paslode was sent back to the makers twice and twice they sent it back misfiring. Its next trip will be the skip.
They are rubbish.
Everyone harps on about servicing them. Even the guys on my site were repeating the same mantra.
Yet their paslodes never left the van.
Bostitch have a few in their product line worth looking at. And these are no slouches when it comes to auto nailers.
They've just launched the BF33 "Liberator". Which has 700 shots per charge.
And needs no expensive gas and no costly down time servicing every 20 minutes or so to remove microscopic particles of dust that stop them working.
You want something that can drive a 50mm galvanised ring shank.
That could be a finish nailer or a framing nailer in the Bostitch range.
So the best thing to do is decide which one you will get the most use from.