Coin Exchange of Treasure Valley is a highly regarded shop for coin and currency enthusiasts. The owner is knowledgeable and friendly, providing fair market prices and a great selection of old coins and paper currency. Customers appreciate the helpfulness and expertise of the staff, who are well-versed in coin values and varieties. Although the space may feel a bit tight, visitors can find a wide range of coins and bullion. Overall, it is considered one of the best coin shops in the Treasure Valley, making it a must-visit for buyers and sellers alike.