I hate to be a Debbie Downer, but I don't have much good to say about the OG Lio Convoy mold. I have 3 versions of him (and have had 6 total in my time collecting) so I can tell you that my issues are widespread.
He's top heavy. Hard to pose.
His torso transformation is quite loose. Trying to pose him usually dislodges something.
Posing is limited due to the torso/shoulders.
And his face is kinda soft. Like a partially melted brick of butter.
All that said, I bought all 3 versions of him years ago, sold them, then rebought them again last year. Because, all issues aside I loves me some Beast Convoy's. What I would suggest however, is the Robot Master version. More solid robot mode