It's a very mellow trail compared to the steeper Beaver Brook Trail, and it's on the "quiet" side of the mountain away from Ravine Lodge and the busier Gorge Brook Trail, so it's the one I use on summer and fall weekends most. There's no parking problem at the trailhead either. If there's been a lot of recent rain, the crossing of Tunnel Brook at the beginning of the trail can be a challenge, but Sunday should not present a problem in that respect. In any event, you'll know what you're up against within a few minutes of walking and can always bail and get around to the Beaver Brook trailhead in 15-20 minutes of driving. About halfway up the Benton there will be a couple of nice outlooks north/northeast into the Little Tunnel Brook Ravine and on beyond that to the Kinsman Ridge.
P.S. Tunnel Brook Road has been cleared of the blow-downs from yesterday's t-storm with "damaging winds" that roared through the 116-112 area. Moosilauke trails probably got hit too. As to the next question about logging on the Tunnel Brook, almost all that I can recall has taken place west of the forest road or on the northernmost foothills of Moosilauke. I think the Benton trailhead is fairly obvious but maybe not to all, so if, after you start down Forest Road 7 at the gate (which is missing right now), you cross a bridge a few miles in and reach a dead-end turnaround, turn around and go back about a mile to the parking area on the east side of the FR.