The new model is good. Compared to the older, now we have more control over the image. What we can do now that was impossible before:

• Create male characters (extra: with feminine features)
• Color control without mixing everything (hair, clothes, objects, skin, scenery, eyes, heterochromia with each color defined, etc)
• Character characteristics control without mixing them up (now is possible to make each character distinguible and interact with the other)
• Control over small details (pendant with specific format/shape, details and decorations in objects)
• Control over location and quantity (so if you use "bandage" in the arm, the character will have it in the arm instead of random parts in the body and floor, and if you want a single flower, tomb or ribbon, the image will no be full of it)
• Lighting control (lighting and shadows also makes more sense)
• Text and symbols prints, is even 'possible' to define the shape and size, and even use emoticons.
• Better cinematic effects (including glow, fire, haze, fog, lightning)
• Better camera lens and effects
• The resolution is still bad but somewhat the pics have less noise and blurred elements

And also all the others things from the older model except (things the model can't do):

• Defined art style (the background/scenery elements and objectsnhave great impact in the composition, and they are so random)
• Specific tags for anime, the model don't know what is serafuku for example

The new flux model also have so much bias for abstract, painting and expressionism. Overall, if the model will be really improved then I think it is better for perchance because:

• Unique (there are many free sites with SD1.5 and SDXL, but not for flux, they are very limited and slow)
• For perchance generators and games that likes rpg and fantasy things, the style, quality and variety are much better.

Personally i prefer Illustrious, but there are many good options in the web.