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 can't complain about this unit.  It costs far less than an RF solution like the PocketWizard, preserves E-TTL flash metering, and adds as little gear to my camera bag as possible, at least compared to lugging, charging, and connecting RF transceivers.

Of course it doesn't have the range of RF, requires line of sight, and doesn't perform as reliably outdoors, so ultimately it comes down to what your needs are.

I shoot mostly indoors and find the ST-E2 exceedingly reliable and convenient.  If I needed an RF solution I wouldn't be writing this review.  So for what it does, this is an ideal little unit.

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