Its a 450mp investment that dies to 15 muni nade barrage if you don't want to stand there for 20 seconds with small arms.
I've said "useful" for a reason.
This thing looks like a tent and is just as durable while costing an arm and a leg.
Moreover, good luck playing blobby with UKF, which is the case of FRP of OKW and USF.
but it also gives garrison bonus and being a forward weapon rack. those are pretty nice.
its also cheap, T2, (280mp) and has no pop cap unlike:
Soviet M5, which is T3, and costs fuel to make, and takes popcap.