1. Do you want the logo to always be inside the circle? If you want it to be a united compound path, make it using Pathfinder. Put the logo above the circle at the needed place, select the logo and the central circle, and use Pathfinder > Minus Front (Subtract). So you will have the logo-shaped hole in the circle.
For letters (from Milenium's note):
1. E and I letters are much thicker than others;
2. The spacing might be the same mechanically but not optically. So, for example, the first E looks to be closer to D than to V, A in the second line looks alone (too big spaces around), etc.
These are the issues visible instantly, with a short glance.
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