Don't make them faster, everything has to be fast nowadays. Most of the time I dont have time to go sit dedicated for 3+ hours for tournaments, so these are excellent for that.
Only big (huge?) oversight is that they dont have synched breaks with tournaments. This has an extremely adverse effect in my opinion. I can only speak for personal experience, but when I have only 2 tournaments left that do not seem to be going broke any time soon. adding some of these sitngo's would be the obvious choice for me. But now I do not want to because they would force me to sit out if I want to use my break time for, you know, an actual break.
As a big multitable sng grinder back in the day it hurts me seeing SNG die though. Now tournaments have become the new SnG I guess with such small fields.
Hexapro is nice to grind but lacks depth because of the shallow stack sizes of course.