I have used this model grill for about 10 years now.  The grill size is fine for six or so servings.  If you are cooking for a larger party, it it may be too small.  The only flaw is uneven heating around the perimeter.  This in effect reduces the cooking area by about 1" length wise and 2" width.  

Customer service is A+/  After I purchased a second grill, it wouldn't heat up very much.  A Weber rep diagnosed the problem as a regulator issue and promptly send me a new one.
Response was very fast.