[garmaine]

It is not thought to be significantly more secure. It runs on the same cryptographic assumptions as monero, but with a de novo implementation that hasn’t received very much review.

[zik]

It's thought to be less susceptible to tracability analysis than Monero.

[1] https://arxiv.org/pdf/1704.04299/

[2] https://eprint.iacr.org/2017/338.pdf