Depends on what you want to do with it. Plenty have bought that upper and love it! I just don't care for the extra weight.
If you're punching paper from the bench with a bipod, weight's probably not such an issue.
Shooting off-hand a lot, or planning on humping the rifle through a class or something, and the extra weight could get annoying.
If it were me and I HAD TO HAVE A MIDDY (for whatever reason), I would go BCM, Sabre, RRA, or CMMG where I could get a mid-length government profile (light under the handguards) or a totally lightweight barreled upper.
Any reason you don't just go with the Del-Ton
16" Light Weight Upper or the
16" M4 Upper (both with CAR gas systems)?
ETA: if you're comparing mid-length barrels, there is quite a bit of difference between a 16" HBAR middy and a 16" Government profile middy and 16" Lightweight profile middy:
HBAR middy = .750 for 9" under the handguards, under the FSB and all the way to the muzzle
Gov. middy = .625 for 9" under the handguards and then .750 from the FSB to the muzzle
LW. middy = .625 for 9" under the handguards, under the FSB and all the way to the muzzle
Don't have the exact numbers handy, but the HBAR will be substantially (probably at least a pound) heavier than the others.