First Let me tell you where I'm coming from in regard to the Browning Hi-Power. I was a proud owner of a Mark II, the late '80s upgraded model of the original Hi-Power with the ambidextrous thumb safeties, nylon grips, 3-dot sights, and throated barrel. I had the gun 'smithed by none other than the renowned Jim Garthwaite in the mid 90's.
So, while I no longer own that gun, I feel very qualified to comment on the BHP and some of it's severe limitations.
The grip feel and pistol profile are excellent. It has a nearly universal gripframe size and shape that can work with many different user hand sizes.
The guns are usually highly reliable out of the box. Highly. Good magazine design and newer guns digest most hollowpoints.
Accuracy tends to be good but not great.
Weak barrel lug prone to shearing which is why the guns have a 2-piece barrel. It is actually a strengthening measure to use a steel with opposing grain structure from the tube. This is why Bar-Sto aftermarket barrels are also two piece.
Lame ass trigger - Perfectly adequate for a combat pistol but hard to refine for precision shooting. The entire trigger linkage on the BHP is an abomination unto the eyes of the Lord. Depending on which book of the Apocrypha you believe, it's either an evil Frog meddling with JMB's design, or a near-death JMB having to design around his own patents. Not even Pedersen ever designed a linkage so Byzantine!
Slide and frame tend to loosen quickly and because of the sear linkage system; you will see or feel the slide move when you pull the trigger. Its a fact of the design.
A frame rail insert system would benefit the P-35.
No steady diet of +P ammo in the BHP. Seriously.
I'm sorry if I hurt some feelings here. I don't mean to denigrate the Hi Power; it is very much a viable defensive pistol, especially by those willing to dedicate sufficient training time on it. I liked the BHP for many years, but now I moved on. Moved on to what you ask? Something in the tupperware aisle? No! John Moses Browning's other design, the 1911 in 9mm. And Springfield Armory does the 9mm 1911 very well indeed.