I bought these for Crossfit workouts and as a replacement to the first version of these shoes which I totally love.  The low score is due to the following:  First, it appears to me that NB has enlarged this shoe so that you might need to size down if you are fitted for the first version - this makes it difficult to purchase online, if the replacement changes so much then it will cause unnecessary returns.  Two, there is a removable insert which will come out when you remove your foot from the shoe - I suppose it would be helpful to remove when you might want to throw them in the wash, but I think it is more of a nuisance.  Three, there is plastic or vinyl like bar positioned above your large toe and when your toe flexes it may rub excessively.  In my case, it left me with a nasty blister which took awhile to heal.

I would give out one star but perhaps it is just my own foot - just be careful when sizing and be prepared to return if your usual New Balance Minimus sizing does not fit right and it really must fit right for these shoes to be effective.