The review is incomplete at best and forgot to mention several new features.
1. You can set a multiplier at 2x, 3x, and 10x your round-ups. I have a wife and three kids and have lots of volume and transactions on my linked cards. If you don't have that volume, you can use the multiplier.
2. Weekly Reoccurring investment: If you don't want to add a multiplier then you can transfer a fixed amount each week automatically to your Acorns and use the 1x round-ups. I recommend this strategy with your Acorns account.
3. Found Money: Acorns has links on their website for hundreds of companies like Amazon to Macy's to Zappos.
A purchase with that company using that link will invest 1% to 10% depending on the company into your Acorns. The bad thing is that you have to click on the link in Acorns to get those savings. You would think they just scan your account for that information. I am okay with this though, and no solution is perfect.
I invest $60 a week in Acorns in addition to a traditional 401k with 1x round-ups enabled with the aggressive ETF. I have multiple investment strategies for multiple streams of income. This is not my 401K, but I could see that it could be.
Bottom Line: Yes, I would recommend this to a friend