Hold your horses... If you take the first entrance to La Vega, coming from Santiago... OK, my directions are a little screwy here, but follow them.. and you'll get to a fine hotel.
First entrance from La Vega coming from Santiago off to the right.. from the highway..
Travel down this road till you see on your left the Supermercado Riviera... Turn around and return the way you came up to the first set of lights (I do not know the name of the road and do not know if it is three lights down or two... Hence the turnaround strategy...)
Turn left at this light.. go a block or two then on your left.. Hotel Rey/first hotel - It looks so-so from the outside but is actually quite fine on the inside... Quite a funny sex channel on TV - never seen this before but the ads are hilarious...
The Supermercado Riviera has a little restaurant where you can eat.. not wonderful but fine if you do not want to go too far...
If you swing back onto the main road heading towards Santo Domingo, pick any of the Tipico Bonao Restaurants and eat some rack of lamb....
There is another hotel in La Vega I know of, (Hotel Pegasus, or otel pegasu) but it is convoluted to get there.... I can talk you through it on the phone... But directions? Last time I had to turn back at the cemetary to avoid some kind of disturbance loud enough to wake the dead.. This is a real offer... I can talk you through it on the phone... This second hotel has more availability than the first one... if you come unstuck.