I've never had a parrot before and they may need more stimulation than that. I really don't know. You might consider a cockatiel. They're less expensive and much quieter (compared to a parrot). I'm a little biased though.
I hope this helps you make your decision.
I'm on the other side of the spectrum and have had two large parrots. I have an African Grey and an Umbrella Cockatoo. The African Grey I have is probably the most perfect "pet" parrot out there. She's smart, interactive, and talkative, but is able to entertain herself for the most part, is not destructive, not too loud, and overall very easy to handle. The Cockatoo I have is on the good side of things too, but she has more "typical parrot issues."
If I leave my cockatoo out for one second unattended, the windowsill or dining table will have a huge chunk bitten off. You can hear her a quarter of a mile away even inside the house with the windows closed when she's screaming. When she has a tantrum, she can bite pretty hard and do quite the damage.
She is the biggest snuggle bug in the world and she's the love of my life, but her constant need for affection tore at me for a good 5 years of my adolescent life. She was never alone in the house as my mother was a stay at home mom, and I made sure that she had a good couple hours every evening of active play time with me. Even then, I always felt guilty about not being able to give her enough attention.
Even with my picture perfect African Grey, I don't think I would feel comfortable having her by myself in an apartment where I would be gone for a big chunk of the day. I assure you I would be evicted within a week with my cockatoo.
I've had quite a bit of experience with conures in a sanctuary setting, but not so much in a home environment. They are definitely easier to deal with than a cockatoo, but I would say that they are still quite a bit more demanding than a cockatiel. Other than the noise (which isn't
that bad on the parrot spectrum, but still pretty significant) and vet bills, I don't see too much of a physical/logistical issue with having a conure. They're not nearly as destructive as the larger hookbills, though they like to bite ears, faces, and toes sometimes.
I'm not sure how prepared you are for emotional turmoil though... It's true that if you end up with the right bird, you can have a perfectly fine situation. With a good routine, lots of dedication, and $$$, I can see it working fine. However, what will you do IF you end up with a bird that screams 24/7, that mutilates himself no matter what you try, is not handlable, etc...? This happens to plenty of people and it's nearly impossible to predict in advance.
If you do decide to go for it, I would definitely set up a routine as kef148 suggested. I would also add that Bedtime routine is VERY important for parrots. They absolutely need 12 hours of quiet + dark sleep time every night for their physical and psychological health. So don't count on your playtime with your bird to be at 10 pm.
I would also try to get a large cage (larger than is typically recomended for a conure) with plenty of toys and enrichment, and a buddy for your conure. There's a whole slew of other problems associated with birdy buddies, but my personal experience has been that conures bond pretty well with each other. Having 2 will help with the boredom issue. Hope this helps at least somewhat.