Dollar Tree in Oak Park is highly regarded for its friendly staff and clean, well-stocked store. Customers consistently report pleasant shopping experiences, noting that the shelves are organized and the aisles are free of clutter. Most employees are described as nice and helpful, contributing to a positive atmosphere. However, there are some concerns about one employee's customer service skills that need improvement. Additionally, some customers feel frustrated with the rising prices and decreasing quality of products, mentioning that items are now smaller or less durable than before. Despite these issues, many shoppers continue to appreciate the overall experience at this Dollar Tree location.