The quality and look of the IA Portable Vocal Booth are second to none, it looks so good, it really levels up any home studio studio. The quality of the vocals is GREAT, really tames the reflection, just don't expect a huge sound absorption, but it definitely helps as with the doors closed I hear way less of the singing outside the room.
It took me this to really hear how much the reflections were destroying my recordings prior. Very satisfied
Also, I mounted everything by myself, but a second person is advisable. Also, it seems the transportation company doesn't bring the "very huge but not so heavy box" to your door, however, the courier opened an exception for me (maybe call Thomann to verify if they are responsible for taking it to your door or just downstairs).