Family of Debauchery is more of a hentai that tries to appeal to multiple fetishes rather than focusing on the technical aspects. Due to the amount of fetishes it tries to appeal to, the end result is a hentai that focuses on pandering rather than arousing.
The overall plot is effectively a messed up rich family likes to effectively break women into turning into enjoying sexual addicts. To do so, they decide that the fastest way is to use a lot of fetishes.
Of course, there may be spoilers, but then again, this is a hentai with almost no plot, so spoilers only reinforce whether this is worth your time.
Art and Animation:
Well, that's a pretty great start to a hentai! Once the video loaded, I was immediately stunned and surprised by how grand the character design and animation were. They left me surprised as for why I am not watching something with any effort placed into it rather than a mere collage of random FETISHES! The fluids are colored light green instead of a more realistic light yellow/light blue, which was quite a great start...to begin ruining the mood of enjoyment.
However, this was not all that they did to make this one cheap hentai! In between sexual scenes, the camera tends to pan a lot. The animation in general is semi cheap, taking shortcuts when they found a way to sneak one in, including reused shots. Once the trap does take off his clothing, you realize that they decided to not bother to draw a certain thing you see the women have protruding out of their breasts on him! This is a hentai, so the purpose should be to arouse people, not throw a bunch of random fetishes and hope they work without working too much on the art.
However, this is a 2001 hentai, so the poor art quality can be somewhat forgiven, but the animation is still fairly bad.
Sound and Music:
The music is an attempt to sound slightly spooky to complement the messed up theme, but instead ends up just being annoying and forgettable. Despite how awful the soundtrack in Bowman War is, this hentai manages to Trump all other competetors of bad and make you think that this hits a spot of a bad soundtrack. The sound quality is pretty low in the first place, but the voice acting is also as if they didn't put any effort in recording their lines, just like the animation! You could probably play a good soundtrack in the background while muting the video and enjoy the hentai more than if you kept it unmuted.
The OVA starts by introducing the "sisters" where it is then revealed that they are dominating their mother. The fetishes included in this part are BDSM, Anal, Yuri, Bestiality, and Crossdressing. Rather than focus on one thing, the hentai tries to appeal to as many people as possible in 30 minutes, which results in it failing to appeal to any one individual topic strongly. In the last few minutes they successfully have broken said individual and sent her to fufill other peoples sexual desire.
Now the next victim believes that she will just tutor them, but instead once again is turned into a living sex toy. To transition into the hentai scene, the sister gives the 'tutor' a cup of tea with drugs in it, where then she is in bondage. This is where the two siblings perform sexual acts once again, where in the end, it is revealed that the father supports their acts as well.
Overall, I would just avoid this and look for a hentai with better animation and sound quality. It would probably focus better on one or two fetishes rather than try to do 5 in thirty minutes, as non-hentai forms of art have aroused me more than this panderfest. If there was not a trap in there then I probably would have not have enjoyed the hentai in the slightest and would have rather spent the hour looking for art.