Instruction: Determine the sentiment expressed by the user in her review from the provided choices, and respond by selecting one of the available options.

Input:
Installation was easy. Had to mount on windshield due to minimum space required from metal frame and window heaters. Tuning was painless and reception is great. Still trying to get good range estimates. Currently at 1.4 miles.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: A: very positive