There's also the golden bee suit, also a ventilated sting proof suit.
http://www.goldenbeeproducts.com/I know many commercial beeks who swear by this suit. I do know the chaps on the legs are better for commercial bee work than the ultrabreeze that does not have chaps. Commercial beekeeping includes alot of lifting and toting of bee boxes and the front of the thighs gets major wear.
For me the primary difference is in the hoods. The golden bee does not always turn when your head turns. Not a problem in the beeyard where you are primarily looking down or straight ahead.
Doing cutouts I need a hood/veil that can fit between joists or studs and looks where I look with peripheral vision.
The only flaw with the english/sheriff style (the style used by the ultrabreeze) is that it will collapse back onto your face when looking up, the reason you should always wear a billed cap. The golden bee hood does not collapse onto your face but the other drawbacks out weigh it for me.
If I were to design the perfect suit it would be the coverall portion of the golden but cut with the looseness and material of the ultrabreeze and the hood of the ultrabreeze but with an added panel on the crown to stiffen the hood front to back.