Not used a Titan brand.
Will say that in general 4-1 buckets are heavier and thus can haul less weight than standard bucket.
Works fine for picking up hat size rocks and bigger. Fist size you need some practice
Will carry logs but usually just one at a time and of course smaller than a grapple.
Will pick up brush but just smaller amounts than a grapple.
Opening bucket to dump has been of very little use to me doing concrete and grade work. Has its uses but in my case not often.
I bought a removable tooth bar to put on the front of it and as far as my uses go it doubled the 4-1 Buckets usefulness. Teeth work as a back dragging light duty rake also. And if you open the bucket you still have a smooth lip to back drag with.
The bucket rarely comes off my tractor. I find it really handy when;
Brush hogging, especially in areas that has not been cleaned up.
Picking up accumulated piles of roots and limbs when doing box blade work.
Picking up piles of rocks that would normally be left behind with a normal bucket.
Picking up logs or large limbs dropped by trees and other trash when brush hogging.
Pretty well puts a stop to all that hand and back work stuff.
Now with all of that said I have not used it on a 3 point hitch at rear of tractor. I would think you need to keep in mind that a LOT of times your coming into the load your trying to pickup with the bucket pointing at a downward angle. Not flat very often. Might be hard to do on the 3 point. A hydraulic top link might help with that some.
Bucket opening to unload might be real handy on a 3 point. Hmm
P.S. keep in mind that a tractor rear links are really not made to push a lot or real hard.