My Stanley bench planes currently include USA-made #4 1/2 Type 11, #7 Type 11, Bed Rocks #604 and #605, and a UK-made #3.
The ones that get frequent use are the #605, which is used as a jack with a 8" cambered blade, and the #604 and #3, both obviously smoothers. All these planes, including the others above, required fettling.
The #7 required the most work. It was quite hollow around the mouth, but after being lapped on a 1m long granite plate, it turned into a good user.
In general, the Stanley blades were better suited to softer woods. The local West Australian timber is high in silica and very abrasive. It is one of the reasons most here moved to A2 or HSS and, more recently, to PM-V11. The modern blades are a joy in tuning since they are flat, where I have always needed to spend a lot of time with Stanley blades. UK-made Stanley blades hold an edge less well than USA-made blades on the whole.
The Stanley I am most fond of is the UK #3. It was my late father-in-law's plane and was my introduction to handplanes 20 years ago. It didn't work very well, but in those early days I did not know better. Eventually, as I worked more hardwoods, I moved to high angle HNT Gordon planes.
When discussion on the chipbreaker effect began to filter through about 3 years ago, I returned to explore the potential of these Stanley planes afresh. I decided to give the #3 a total restoration: fettling of the sole and frog, and a Veritas PM-V11 blade and chipbreaker. It has turned into a smoother that is capable of planing the most interlocked grain. A wonderful plane, but it took a fair amount of work to make it such.
Regards from Perth
Derek