present perfect continuous vs present continuous

[Daemon99]

Which of the following sentences is correct?

1) I have been using it for the past 6 months and it's been working fine.
2) I have been using it for the past 6 months and it's working fine.
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Non-native speaker of English
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I intend to live forever - so far, so good.

[Tamta]

The first sentence is correct: I have been using it for the past 6 months and it's been working fine. (it has been working fine since then,that's why you should use present perfect continuous)
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"Never judge a book by its cover..."