If you want a hotel with a big pool and pool bar, overlooking the ocean, then this is not the hotel for you. However, I don't think one of those exits in Carlsbad. That means if you want the ocean and restaurants and maybe bar/pub for a beer, you'll need to drive 5-10 minutes.
West Inn is between the two best beaches in Carlsbad - South state park and Tamarack. Also while there is shopping and restaurants in downtown Carlsbad (north of the hotel), some of the better restaurants and shopping is south of downtown and south of the hotel. I understand that it's very central for business travelers as well - we were there mid-week and definately more business travelers than vacationers.
*while it didn't seem central at first it proved to be very central
*breakfast included, with a nice breakfast room (flat screens to get caught up on what happened while you were at the beach)
*parking included and never a problem finding a spot
*Bonus Tip: There's a guest laundry room on the 2nd floor. We were doing a beach trip starting in Santa barbara and working our way to San Diego and then back. SoCal was having a heat wave, and we needed to do some laundry badly so this was perfect!
*a room on the I-5 side might be a little noisy (we don't know as we stayed on the other side)
*workout room was tiny - but at least there was one, and it was clean.