I don't want to contradict the many Paramo fans out there and as Lithril correctly points out above, different things work for different folks. I have never got overheated or damp or wet or chilled in a good Goretex jacket, and the Pro Shell ones are even better. However, I spent a long time trying different things and went through a Ventile phase and a very expensive Paramo phase.
My issues with Paramo are :
- You can't wear it when it's warm and wet because it's too warm
- The proofing fails suddenly, so on a multi-day trip you will suddenly find yourself soaked through and you will stay that way. The solution is to reproof before every trip which is a bit of a chore
- A paramo pump liner jacket relies on body heat to dry out so if you are fairly inactive and its cold and raining (eg in a canoe / sitting around at lunch / sitting with a sprained ankle) you will get chilled - in fact a wet Paramo jacket acts like a wine cooler
- A rucksack will drive moisture back through the back towards you ( some of the top of the range jackets have batons in the back to limit this)
- When you sit /kneel elbow-lean on something wet, moisture will come through and wet and chill you
- The fleece-type mid layers (mountain pullover etc) soak up perspiration / condensation and then stay wet for a long time, unless, again, there is a lot of body heat to dry them out.
- The Taiga fleece, although a very nice garment, isn't even slightly windproof
- They melt round fires (although no more than Goretex etc) as I found while drying to dry out my Velez smock two full days after it had soaked me to the skin on the Great Glen canoe trip
- When they get wet and soggy I think they just don't feel nice to wear
- I just don't think they look right on but that's just me
- They are too expensive, considering they are made of inexpensive materials (no trademarked gore membrane materials and seam taping) and in a low cost, albeit "ethical", labour environment
However I am in the minority and I would say you meet four Paramo fans for every detractor. As I said I was once a big fan. I now wear a single layer ventile smock for rough work around camp and sitting by the fire, and apart from that, a combination of modern wicking base layer, soft-shell jacket and goretex waterproof to keep we warm and dry on the move.
I would say borrow a Paramo jacket and try it extensively in some tough conditions first, if you can.
NS