The Pulsar HP Saxon in .177 in my experience is an incredible gun. Inherently accurate (especially on high power with JSB 16.20's), wonderful trigger (allowing such great accuracy) very good shot count per fill and good looking as well.
I bought mine after falling in love with the electronic system of my Daystate Red Wolf.
A couple of things which surprised me about my Saxon HP were:
It is nowhere near as mouse-fart quiet as my std power Red Wolf, and requires a moderator when shooting in my back yard;
Due to its bullpup configuration and higher power it is not as forgiving of shooter errors as my std power Red Wolf.
But once you learn the hold it likes, it is a tack driving laser beam. Even out to 50+ yards, with a .177 pellet no less!
I was just able to score a pre-owned std power .22 Pulsar last week, and shot it over the last couple of days. I found the std power gun to be much more quiet like the Red Wolf, and also more forgiving to a low skilled shooter like me (although it might be that I just know better how to shoot a Pulsar now from my experience with my Saxon HP).
They are heavier bullpups, especially in the HP configuration. But I use mine for shooting off a bench, not woods walking.
If one is going to own a bullpup with the cocking lever by one's ear, the Pulsar is the one to own. You are only resetting the electronics, indexing the magazine and chambering the pellet with the lever, not compressing any spring. You can do it with one finger, and never have to take your eye off the target.
If you can't tell already, I am a total Pulsar fanboy.