It has all kinds of tips for the Architecture Career, among other things. To reply to your tip section, the reason you got conflicting reviews is because each sim has a different trait that will affect the outcome of your job score. If a sim is a snob, they want you to use all the budget and then some. But if they’re frugal, then you shouldn’t use all the budget. But there are lots of other traits that affect the job score as well, so check out that forum!

To avoid the “clutter” problem make sure to leave a lot of walking space between objects and furniture.

Pay attention to your clients traits. The reason you had those comments about the budget was because of the clients’ traits. Snobs want you to use the whole budget, while frugal sims want you to save money. Also consider adding bookshelves for bookworms, or computers for computer whizes. Don’t use art if the sim can’t stand art, etc. You get the idea.

Hope that helped. Happy simming!