For the price, and you can get in for under $10, and get a discount by signing up for a free players card in the downstairs casino area, the buffet is "okay" (yeah, I've had better for the same price too), nothing outstanding, but falls into the "you get what you pay for" category.
The beef stew was fairly good for lunch, it may have been of canned origin 'tho, reminds me of Dinty Moore at it's best.
The soft serve frozen desert machine was broken, so the chocolate came out a bit like it had the runs.
I didn't try the breakfast nor the dinner.
As far as buffets goes, there are better choices in Las Vegas of both more expansive selection and tastier quality, but those will run you about $30-40+.
So, if you're hungry, and have $10, you get all you can drink (non-alcoholic soft drinks) and that should cover your meal, tax and tip.
Truthfully, the restaurant next door with the $10 entree deals like the Prime Rib may be a better choice for your money if you're into higher quality and not focused in on the diversity and quantity that buffets offer.
Don't fall into the trap of gambling here at Terrible's... twice I've gambled and lost enough to have used that money to buy a high end dinner at a steakhouse.
The golden rule of Vegas for gamblers... DO NOT GO CHEAP ON FOOD !!! If you're so willing to throw $10, $25, or $100 on gambling bets only to let cards, dice a rolling ball or reels determine your financial fate, you most certainly can fork over $50 and treat yourself to a good meal, so at the end of the trip even if you lose, at least you had a good dining experience.