Table looks nice.  Top is solid wood but sure does NOT look like oak.  But looks okay even with the many obvious joints.  
The ring around the underside of the table is oak veneer and ours had several slivers along the edge when we received it.  I can see how this will be a continuing problem and is the worst issue identified so far.  
You will need a wrench for assembly as the one included is worthless.  Common 1/2" wrench works.
Table is easily leveled by using the screw-in pads on the leg bottoms.  Just place a washer under the pad on the short leg for a permanent leveling fix.