Read our review of the Maxim88 SG. . Maxim88 SG is a newly established online betting site, so it is still early to give its normal overall rating. Read our review of the Maxim88 SG. To accurately gauge its rating. Since this is a new betting site, we have not come to any conclusion regarding its rating yet. Since this is a new betting site, we have not come to any conclusion regarding its rating yet.