Well, it does have location going for it.
When I stay in a cabin in a National Park, I do not have high expectations, but the cabin could have been cleaned better. The bedding was OK.

I share the earlier warning about the effectiveness of the heater . . . it was like sitting in front of a fire, one side warm the other cold.

We brought our cooler, so we were set for breakfast and there was a working coffee maker.

I was extremely troubled by the check-in requirements. The desk clerk insisted on making a credit card imprint and having me sign the slip with the amount blank and also photocopying my DL. This procedure was said to be a requirement of the lodging concessionaire and the park superintentent. I have written to both - no resolution yet.

We stayed in a cabin in Grant Grove (meadow camp, No. 521). I strongly warn anyone against staying there if it is not the height of summer. We stayed there in September, a HUGE mistake!

The $91 cabin said it had a heater. The "heater" was only capable of heating 5 inches of air on top of it, nothing else. It was equivalent to a toaster. The cabin was not insulated. We spent a shivering, sleepless night in 30-degree weather.

Other than the heater, the cabin was fine (ok, the puddle on the porch where the picnic table and walkway were and the mouse that got into our food inside was a little annoying, but bearable.)

I strongly suggest anyone who rents these cabins to bring a space heater or electric blanket or stay in the John Muir lodge nearby.

Just stayed at one of the rustic historic bath cabins. It was clean spacious but simple. The whole General Grant lodge complex needs significant renovation and updating of landscaping and planning. The only dining facility available to non-campers was the dining room at the registration/souvanir store. This dining room serves the cabins, the John Muir Lodge, and general area of the Grant Grove. Service was terrible and the whole place seem totally disorganized for table service facility. I would only stay in this area of the park for only one or two nights maximum.
Don't stay down at the Cedar Grove Lodge unless you are actually planning to do some day hiking activities; the hotel facility down there is very minimal.

OK, Well first of all I am not a sissy girl. These cabins are old but that didn't bother me, dirty carpet shabby drapes, didn't bother me, but, the dead mouse and the huge blacks ants trying to carry it away did! I walked to the reservation desk and explained the problem and asked to have the carpets swept (don't look under your bed) YIKES! Following that things were great.
Beds are pretty comfy. Cabins are close to resturant and grocery so the are very convenient. This is one of two places to eat in the park. Breakfast is either oatmeal or buffet $9.95 PER. Dinner and lunch have a menu. Food was ok....pizza was good.
The park itself was beautiful, quiet and very Zen like. Giant Grove forest is a must. The drive to sunset point was particularly nice. Try to catch a sunrise there. Bears I guess are around we didn't see any. Zumwalt meadow early is the place to see bears.
I enjoyed are stay but would take ant traps the next time. Please do not consume food in your cabins! Leave no wrappers in the trash can in the room! You will have all sorts of small creatures trying to get in. I am not kidding about this.