I sent you a private message. ABC is right on the beach, near to some nice restaurants and the Alhambra Casino and the casino shops.

Supermarket shopping is not far off - too far to walk it.

Ling & Sons (IGA) is probably the best market, also not far is Kong Hing and Super Foods.

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Ling & Sons

Check the links from the pm for more detailed information on dining, etc.

Bus service is excellent - the L10, 10A & 10B lines all pass ABC and will take you to town and the high rise area and most dining, you may need a rental if you wish to tour the island. Fare is US$2.30 p.p. one way.
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Also Endless Vacations offer TS rentals and with the AARP program include a 35% discount.
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Endless Vacations

You should rent first before buying to be sure this is what you really want.