The ratings for Season 1 of Bottom started at 8.2 and gradually increased to 8.3 by the end of the season. In Season 2, the ratings remained consistently high, ranging from 8.4 to 8.9. However, in Season 3, the ratings dropped slightly to around 8.2 to 8.7. Therefore, based on the rating scale provided, Bottom seems to have overall maintained a good level of quality throughout its episodes. The show may have slightly fluctuated in its ratings, but it generally falls within the "decent" to "good" range. As for the bingeable rating, it would be around 80.