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've owned my Oregon Scientific wireless rain gauge for about four years.  I just ordered a La Crosse as a replacement.

The OS gauge has been a disappointment from the very beginning.  It is somewhat difficult to program and must be reprogrammed each time the batteries are replaced in the receiving unit.

As stated by a previous reviewer, the gauge is inaccurate.  My typical glass tube type rain gauge always indicates about 25%more rain than the OS.

My biggest complaint is battery life. I've lost count of the number of times the batteries have been changed in both the collector and the receiver. The batteries dependably fail during two or three day rain spells requiring me to attend to the tedious job of changing batteries in a downpour or forget about keeping rainfall records.

The clock and indoor temperature are accurate.

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