Change to Marshmallow instead of Reqparser?

[aliceafterall]

In light of Flask's Reqparser not only behaving oddly and being less-than-well-documented, would there be interest in using Marshmallow instead of Reqparser? The change would be relatively simple - in checkin.py we'd have a schema for the GameListing model, and simply run schema.load(request.get_json()) to get back a valid model. For an example, here's a schema for the GameListing model:

from marshmallow import Schema, fields

class GameListingSchema(Schema):
    game_name = fields.Str(required=True)
    game_status = fields.Str(required=True)
    game_website = fields.Str()
    listing_contact = fields.Str(required=True)
    short_description = fields.Str(validator=lambda v: return len(v) < 255)
    long_description = fields.Str()

    telnet_hostname = fields.Str()
    telnet_port = fields.Integer()
    web_client_url = fields.Str()

    connected_account_count = fields.Integer()
    total_account_count = fields.Integer()

    evennia_version = fields.Str(required=True)
    python_version = fields.Str()
    django_version = fields.Str()
    server_platform = fields.Str()

game_listing_schema = GameListingSchema()
...
# in GameListingCheckin(Resource)
    result = game_listing_schema.load(request.get_json())
    # process result as we did args