Best case scenario, you work 100+ hours during tax season and 80 rest of the year. The downside is alliantgroup is not looked at in a favorable light by most accounting firms. Part of this is due to lack of recognition (due to size) and part of this is alliantgroup has been involved in numerous lawsuits and disputes with reputable accounting firms. alliantgroup tries to emulate the Big 4 accounting firm practice of bringing in a ton of people and weeding them out. Unfortunately there are not companies lined up to hire those people afterwords like with the Big 4 firms. Once you leave this company (I promise you will dream of this day as soon as you hit 6 months) don't expect for other employers to value the experience you received at alliantgroup.
There is also a strict hierarchy here. If you are hired as a project associate, be prepared to be talked to by the directors and associates. Double if you are hired on as Admin position. alliantgroup started a group for client relation experts while I was working there. This group is the worst. They have direct access to the owner of the company and their role is basically to act as informants within the company. They don't understand the tax credits are calculated but are higher on the food chain then associates and project associates. Management is very young and unprofessional. Be prepared for a lot of gossip and backstabbing. Part of this is also not management’s fault, since they are also project managers for a large number of projects and have not had a life outside of work for years.
If you cannot find any other job elsewhere is the only reason I would consider taking a position at this company.