Both are good tournaments
Both the grand and the gold strike are good tournaments to play at.
The gold strike is a different format (hybrid). First you play two rounds and the top 35 highest combined scores advance to an elimination format. If you don't like one of your scores in a round you can rebuy and only the top two session scores are counted to the total. There are prizes for finishing with high scores in each qualifying round. $5000 for first down to $1000 in thousand dollar increments to 5th, $500 for sixth and $250 from 7th to 10th. Rebuy session is lower since buyin is half of regular $500 entry fee. Top prize is $50,000 at final table. If you make it to past the qualifying rounds you also win $500.
I haven't gotten my papers yet from the grand so I don't know if they have changed anything, but I believe it is strictly an elimination format.
With both tournaments they provide rooms for two nights (Friday and Saturday) and I think both have welcome banquets on Friday night although play doesn't start until Saturday with finals on Sunday. Other meals are not provided, but you can get comped from play at regular tables fairly easily, plus at the gold strike I remember they had coffee and rolls in the mornings. The Gold Strike tourney is in their conference area, while the grand plays in one of their pits.
With a lot of the top tourney players in Vegas, it is a good time to play at Tunica.