Welcome to the forum and good luck!
What Highsider said. Yes the Grom will be great for you. Please do yourself and everyone else a favor and take the MSF class. You will have fun. Welcome to the forum.The grom would be a great first bike. Do take a motorcycle safety class.
I am glad to hear that you took the class. It is so handy, and they teach so many good practices! I think that people get the thought in their heads that a riders course is beneath them. They are not. I actually want to take another one just so I can freshen up my skills and see what bad habits I have developed.
Anyway, welcome to the site! What part of TX? This bike is great for a new rider for all the reasons that you listed. It will be a great bike that will not get you into trouble because it has too much power, and is too heavy if you do get into trouble. I think it would be good for you to go back and take an advanced course once you get the bike so you can go through some exercises with YOUR ACTUAL bike instead of on that is borrowed.