Lampizator Golden Gate R2R vs Delta Sigma

I’m still looking for proper Lampizator DAC and saw an offer for Golden Gate R2R version. Can anyone tell what is the difference in sound between r2r and delta-sigma version?

Will I regret choosing r2r or vice versa?

Another question - I use usually a Mac to upsample music from streaming services to DSD, does it make sense with r2r version? Thanks for any comments