Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
I cant believe what an excellent product this has been. And the incredible support! Have used it for about 8 months and the quality is wonderful; each time I have had a problem or added another computer to the network, the toll free support has solved the problems in minutes. Very happy with this purchase!

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