Immaculately cleaned suite, quick and easy check-in, good price, excellent space. Everything about MGM Signature is top drawer. I much prefer it over Vegas hotels, and I am frequently here.
However, it is important to note that because of COVID restrictions, MGM Signature guests are not allowed into the MGM Grand Resort Pool complex with its popular Lazy River. Also, Monday-Thursday, the only pool open at MGM Signature right now is the one at Tower 2. For me, none of this was an issue. I was in Vegas on business. But if you are a family with kids, this stuff is important for you to know before arrival. Hopefully, MGM will change this policy sooner than later.
Nevertheless, I would stay again in this suite without hesitation.