Bitconnect is widely regarded as a pyramid scheme / MLM scam, obviously you can do your own research, and maybe it will work out for you, but I'd be very careful.
Some sources:

https://99bitcoins.com/bitconnect-review-scam-legit/
https://steemit.com/scam/@thegrinder/the-bitconnect-scam-exposed
https://news.bitcoin.com/cracks-appear-critics-label-bitconnect-ponzi-scheme/