I would phone up and ask lots of questions. In reality, there are many horse ads that are totally fictional. The horse will be real enough, but how it is described can be open to huge interpretation. For instance 'suitable for a novice', could mean that it is suitable for a complete beginner or it could mean that it is suitable for someone to take round a novice event course! 'Live in or out' could mean that the horse is happy to be stabled, but could also mean that the horse will physically go into a stable but box walk and kick the door all day! People lie all the time when selling horses, the only way to find out for sure is to ask a million questions, take someone very experienced to view, NEVER be the first person to get on (get the owner to ride first) and never take anything at face value. For example, if the seller says the horse loads fine, don't take their word for it, ask to see it load.