raid 1 with ssd drives

I am considering using 2 sata ssd's for a MD raid 1 configuration, and was curious how the performance would be compared to only a single drive. I saw this from the RH storage guide and though it was intriguing, but no further explanation is given: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Storage_Administration_Guide/ch-ssd.html

Red Hat also warns that software RAID levels 1, 4, 5, and 6 are not recommended for use on SSDs. During the initialization stage of these RAID levels, some RAID management utilities (such as mdadm) write to all of the blocks on the storage device to ensure that checksums operate properly. This will cause the performance of the SSD to degrade quickly.

Has anyone had experience trying this?