888sport is part of the long-established 888 group and so is very easy to trust when it comes to deciding which bookie to go with. It is licensed in two jurisdictions, Gibraltar and the UK Gambling Commission, which is one of the most trusted gambling authorities in the world.
A +1.5 spread is commonly seen in baseball betting, the standard runline for MLB. This spread means the underdog must win outright or lose by exactly one run to cover the spread. Alternatively, a -1.5 spread means that the favorite must win by at least two runs. Many baseball games are decided by fewer than two runs.