Chelsea is a pretty nice neighborhood. For reference, I am attaching a Neighborhood Map of Manhattan. (Chelsea is the green shape on the lower left (west) side.)  
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You can use the map as a guide to getting around if other people make suggestions like, "There's a great place in Hell's Kitchen." (walking distance) or "There's a great place in Washington Heights." (which is all the north and not so convenient to get to from Chelsea).  
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More helpful tourist tips:  
The east-west Streets are numbered higher going north. 42nd Street is north of 23rd Street.  
The Streets usually alternate one way east, one way west with several important two-way exceptions (23rd, 34th, 42nd ...).  
"East # St." extends east of 5th Avenue. "West # St." extends west of 5th Avenue.
House numbering begins ("zero") at 5th Avenue: 10 East # St. and 10 West # St. are basically across 5th Avenue from each other.  
The higher numbers are farther from 5th Avenue: 500 East # St. is closer to the East River. 500 West # St. is closer to the Hudson River.  
The streets mostly form a regular grid: Twenty (20) city blocks = one mile. The walk from 34th St. x 6th Ave. north to 54th St. x 6th Ave. is two miles. (That comes in handy if your group says, "Let's walk there!" or "Let's take a cab.")  
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The E-W walking distance between the north-south Avenues is longer than the N-S St.-to-St. distances but I don't remember the exact distance.  
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Search this board for many prior "neighborhood map" posts which are usually on tourist-oriented topics.
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If you get homesick for country music, see:
http://www.theinfatuation.com/new-york/guides/country-bars-restaurants-nyc
Where To Be A Little Bit Country In NYC.
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Bon voyage!