My family (DH and 2 DS -14 & 12) and I just did the 4-day Wonder on 8/30 and I have to say I was VERY dissapointed with Happy Limo and would never use them again. I booked the limo about 6 months in advance as a birthday surprise for one of our sons - I clearly specified when I booked that the limo was a surprise and they were to be at the port to pick us up at 9:30 AM. I also asked them to have a placard/sign with our family name, so the boys would know that the limo was how we were getting back to Disney after our cruise.
We arrived at the taxi/limo/rental car transport area about 9:20 AM and there was no limo. We told our kids that we were going to get a rental car so they were not too suspicious at this point and I gave the limo company the benefit of the doubt, since we did book a 9:30 pick-up. Well, 9:30 came and went...now our boys were starting to wonder why we weren't getting on the rental car bus. I called Happy Limo and the woman who answered said "He's on his way." I explained that this was to be a surprise and I had clearly indicated that the limo was to be there at 9:30, but the woman I was speaking with clearly didn't care.
On to the limo -- it finally arrived at 9:45 and I saw it entering the loop for pick-ups. I was waiting for the driver to get out with our names on a sign (as you frequently see in airports, etc.) so the boys would see. The driver just sat there in the limo. I finally walked up to him and asked if he was there for our family to which he said "yes." No getting out with a sign and the surprise was ruined.
We had rented a Lincoln Navigator stretch ($305 one way from Port to Beach Club) and the limo was quite a dissapointment. The driver was not dressed professionally and the limo was in poor condition. The stereo did not work, there were lots of scuff/dirt marks on the interior walls and ceiling and one section of the door panel was coming apart and you could see the nails. At no point did the driver apologize for being late - even when I reminded him that this was supposed to be a surprise. They did absolutely nothing for our son's birthday (all I was looking for was a "happy birthday" comment or maybe a sign - nothing major).
When I booked the limo, I indicated that we wanted to make one stop along the way. There was a section for this on the online order form and Happy Limo states online that one stop is allowed free of charge. When we asked to stop at a drive-through restaurant, the driver said he could not do that because he had another pick-up scheduled and he was running late (apparently he was more concerned about being on time for the next pick-up).
Sorry for the long rant - I just wanted to give my impression, since many people have reported being satisfied with Happy Limo. I am not a person who is easy disassatisfied or who only finds the negative in things, but this limo rental was a total WASTE. I would never use this company again. I hope you have a better experience than we did.