I don’t mind it. Personally I find that it gives an incredible amount of dollar cost averaging, since as little as $5 gets invested at a time. All transaction fees are included with the $1-$2 a month.
Additionally it’s not a black box because you get to select from 5 options that explicitly show the exact allocation and which ETF it goes to.
To each his own, but I find that it takes away a lot of the psychological thought of investing in a cost effective way. But the $1-2 a month can end up being a large fee if you don’t have more than $10 or $20k invested.