2 years ago I purchased the Trend AirShield Pro and still consider it to be the best PAPR for the dollars.
I could not get used to the distortion that the Triton facesheld caused, the Trend does not distort.
So I am a fan of the Trend, and outfitted mine with earmuffs, extra batteries, etc.
It's comfortable to wear, well balanced and has good battery life.
In the last year or so I've made some very good buys on 3M respirators and now own a 3M AirStream and two 3m Breathe Easy units that my wife and I share.
Now that I've got the 3M units I'm selling the Trend.
If anyone is interested, please let me know by private message.
I'll sell the complete setup as shown in this page, and drop the price by $50 if someone does not want the third (unopened) battery. Detals are here