Like the Sherman, the casting quality is outstanding with almost no flash and only minor seam lines. The halftrack has about as many parts as the Sherman but seems less fiddly to assemble. There is a bit of room in the nose (engine area) for some lead weight although we simply squished a couple sinkers and glued them to the bottom of the hull between the tracks. This worked well and you can’t see them. If you want to use the crew figures you will need to put them in before you glue the hull together. There are five troop figures included with a mix of mid and late war uniforms plus some nice stowage. Also included are the various machine guns. These are very nice as well but are of scale size. The rear mounted MG would not last more than a minute in actual play before getting snapped off. Of course the metal equivalents are not much better but we do wish PSC would beef these up just a tad.
Best of all the Plastic Soldier Company SdKfz 251D scales almost perfectly with the Battlefront 15mm model. It is even a better match than the Sherman. In fact, for all practical purposes, they are identical in size. As you can see from the accompanying photos they would mix just fine in a unit. Also note that the details on the PSC model are extremely crisp and clean.
Also see the WWPD review of the halftracks.