You will notice that unless I am personally attacked, my comments apply to content. The 4329P (which you cannot buy yet), is based on the 708P, which I am very familiar with. There may be tweaks in the drivers, but the articles imply it is using the same driver compliment and it looks like the same horn. Spacing looks similar. My comments on the 708P, are informed. They are a good speaker, but they don't like to be pushed too hard. They have good horizontal dispersion, but poor vertical dispersion. In a typical studio, these will be used at closer distances than in a typical home, and ensuring proper seating height would be a given. The closer seating position negates both peak volume requirements and much of the poor off-axis vertical response (floor reflections mainly). The proper seating height will also negate issues with off axis vertical response.
In the appropriate residential installation, no doubt they would sound very good, but one should be aware of their flaws before blinding jumping in.