I've used both, I also have a fatboy, slim adjustable, New Deluxe open comb, Old Type open comb, tech, super speed, red tip, and have had a Futur and 38G.
The ONLY DE razor that has seen ANY use, at ALL in the past 5 or 6 months is my Feather. If you don't have the blade angle right, it can nick, just like a tech or a super speed can nick you... It's very forgiving, but not magical in that it won't bite if you hold the wrong angle and try to apply pressure to compensate for the poor angle.
When you DO find the right angle (much lower angle than what you THINK it should be - a LOT of the top cap on the face, with the safety bar hardly making any contact at ALL) it's as close shaving as an open comb Gillette, incredibly smooth, and GREAT on blade life. Get the angle wrong and you will be calling it "too mild", and a Feather blade will last you 3 shaves max... Get it right and a Feather blade will take you out to 7 shaves and beyond, comfortably and closely.
As far a smoothness, it's an incredibly smooth razor, with the blade held tightly. Unlike most other razor designs there is simply no way for the blade to not be perfectly aligned, and the weight and balance of the razor is (for me) perfectly suited for my hard/tough grey hairs. You definitely want to pair this razor up with some sharp blades for a BBS shave, although it will give a comfortable SAS shave with almost any blade I've thrown at it. The only two blades I've tried that I stopped and threw the blade away after 2 strokes were Derby & Super Max - every other blade has been smoooooth, although the duller ones (Astra, Gillette goals and a couple other middle of the road blades) haven't been BBS close.
(I said the only DE, I also use straights about 50% of the time, and recently, since I got my Feather RG straight, it's pretty much been in constant use the last 2-3 weeks, only mixing it up to go to a regular straight a few days.)
Brian - I think it would be totally inappropriate for me to even contemplate what I am thinking about.