He's pretty similar to spacies in a lot of respects, but lacks a few important things they have in exchange for some good things they don't. DJC and his DJ in general give him more aerial mobility, by a lot, which can be good for tech chasing, fake out retreats, fake out approaches and the like; what is essentially an even shorter SH than falco, although being able to touch ground again that quickly isn't THAT useful since his moves come out faster; and most importantly, the ability to cancel a full hop at any height and instantly start a FF, which is good for aerialing at the perfect height before landing on platforms. With his fairly fast FF speed, his downward mobility isn't hindered that much either like a lot of characters with that kind of DJ (is there a name for the kind of DJ that can be canceled?) since they tend to be much floatier. He does lose quick upward mobility though. The new ability to do rising aerials however lets him effectively stay in the air a lot longer than them, though. His PKF is like a shorter ranged but higher advantaged on hit version of falco's laser, his \/B is obviously a lot like a shine, except with repeating hitboxes that can probably beat out CCing (not sure about this actually, there's a chance this might be too slow and I haven't worked this into my Lucas game yet) in place of the ability to auto-beat it out by having the right knockback strength/angle and sends at a great angle for follow ups like the spacies' shines. His Dair/Bair are like worse versions of the falco's dair and fox/falco's bairs lacking lingering hitboxes, since they don't linger, but his fair/uair are like better versions, what with fair respectively having a single hit and ending more quickly, and uair having a single hit to prevent SDIing out and ending more quickly. Nair pretty much replaces fox's dair, and probably has more uses since it has knockback growth and a landing hitbox, but since he doesn't have anything analogous to their nair, he lacks any lingering aerials at all and so has to be much more accurate and has less room in many cases to work with aerials. Up-b is like a worse more gimpable and predictable version of theirs (although his long double jump, down-b helping to stall while keeping forward momentum, and tether make his recovery a little less garbage), nB adds a little power to some stuff but doesn't really help with anything he has issues with. He's also got a pretty slow grab, but being more disjointed helps in some cases I guess. There's probably a few other things I didn't mention, like some of his stuff being more disjointed.
tl;dr High. Top ten probably. He's like a slightly toned down spacie if they had a djc but a useless nB and less lingering hitboxes.