The two piece guide rod isn't a big deal. I have one on my Trophy Match (the TRPs non-tactical cousin) it's not a problem. I have several of the allen wrenches. I keep on in the range bag an another in the Cleaning gear. If one were to decide they hate it, a one piece replacement can't be a big deal.
As to whether it's worth it? Only you can answer that for sure. If you do buy it, I doubt you will have any complaints, beyond price.
TRP Operators with bull barrels do not have two piece guide rods. They have a FLGR. The FLGR can be replaced with a Dawson Precision Tool less Guide Rod or you can get a closed reverse plug from 10-8 Performance for use with a GI rod.
The TRP Operators are going for a premium right now on GB. There are two full rails on there right now with bids over $2400. The 3/4 rails seem to be going between $1500-$1700.