However, these are most definitely wargaming models; Dragon or Trumpeter they ain't. If you're buying tanks for a wargaming army, as indeed I am, the fact they're cheap, simple to build, and - due to their simplicity and lack of fine detail - robust enough to withstand frequent handling, are all potential pluses.
'Finescale' modellers, looking for display-case suitable single vehicles should look elsewhere. For myself, I don't mind - in fact I quite enjoy - the detailing and/or conversion of my models. Fabricating my own detailing for these Armourfast Shermans has been a fun project.
I started by adding all the 'eyelet' type rings; I think these are for lifting the tanks during transportation, but possibly also they're for mounting cables/stowage, etc. After that I made the 'wire-frame' style doodads that I suppose are for covering/protecting the headlamps. This was harder, and more time consuming. I'm currently pondering how I might add track-tread detail, to the visible fore and aft portions of the tracks.
The models not only lack detail, but come without decals. Armourfast sell some suitable stuff by Black Lion via their website. They also stock/sell numerous add-ons, such as stowage and the like, for detailing their tanks. The extra costs in these areas, plus the time you might choose to spend working on these very basic kits to enhance them, make them more costly in real terms than the box price might suggest. But they'll still come in cheaper per tank than the more high end models.
I also recently purchased a box of Plastic Soldier Co. Shermans. These come three to the box (this said, my box - bought at local charity shop for £5 - only had two!), and are slightly more detailed, with more pieces to assemble: of particular note, the Armourfast running gear (wheels and tracks) are one piece castings, lacking tread detail (which can be a nice aspect of the various Sherman types), whereas PSC are three piece, with much better detailed track. But, in the end, the PSC kits end up costing the same per tank, roughly, as Armourfast models.
So, if you're looking to build quick/cheap larger forces, Armourfast are, economically, a wise choice. If you find the fun of kit building resides in off-the-shelf hyper detail, buy a different brand. If you like detailing stuff yourself, as I do, then the limitations of these models present an interesting challenge. All told, balancing the lack of detail against value per model, I'd rate these at four stars/balkankreuz.