I’ve worked at temp jobs for the last 2 and a half years.
Yes, you will be given all the crap jobs.
Yes you will be excluded from all the company activities.
Yes you will be thrown into a situation and get no instructions how to do it. I TOTALLY disagree you will be given a lot of help. This is a MAJOR complaint among all temps.
This is especially bad now as there are so many people looking for work, the companies demand temps that don’t need any help or can do things with no instructions. In reality as bad as this may seem, you get used to it fast and learn to adapt. In a month you’ll be able to do this easily
I have found you don’t get treated as employees. I’ve worked at places where you can’t use the company cafeteria, you can’t use the bathroom for regular employees, you have to be searched though the other employees don’t, and the list goes on.
The bigges problem I found with it, is the lack of jobs and the employers know it. In normal times temping isn’t so bad, why? Because it works both ways. If you get a horrible employer you simply don’t go back the next day and you’re temp agency puts you somewhere else. So in the end it ain’t bad.
But here’s what happened to me. I have background in IT and accounting.
I would get sent to answer phones and paid minimum wage. OK fair enough. I’d get there and the company would be like “OK fix our computer.” I’d say “No, you pay me minimum wage to answer phones, if you want an IT guy call the temp agency and they’ll send someone over to do that. Of course you’ll pay a LOT more.”
In normal times, the temp agency would be furious as they’re being cheated. (Though I get only minimum wage, the temp agency is probably getting $11 or $12 and hour from the company). But the temp agency was telling me, “Just do it or we’ll find someone else who will.”
Last October I gave up with this attitude. I was an asst controller, and I have a TON of experience in bugets. Well Sept/Oct are key months for working on budgets.
Once again, I was sent to file papers and paid minimum wage. Fair enough. Once again, I was told, don’t do that, go help our accounting manager to do the budget.
Evidently these companies fired their controllers as a cost saving measure and now are in deep stuff as the accounting manager has no experience with budgets. So they go to a temp agency and demand to see resumes. The ones with budget experience, they hire as clerks and then “reassign” them.
By then I was out of work so long I had no choice. Temp agencies normally would be up in arms, as they could make a LOT more money temping me out an asst controller rather than me as clerk.
When I told them, they shrugged and says “That’s the way it is now.”
Right now I’ll tell you about my worst temp job. It’s what I have now. I am active with 15 agencies and only one can get me work for more than one day.
This is overnights at a factory where they make generic drugs. I get minimum wage.
When I first started I got a six week contract. I though great, at least it’s steady.
Then business slowed and they cut people. OK fair enough.
Then they said, “Too slow at the factory,” you have to call each day to find out if there is work for that night. OK fair enough. The office opens at 9am and by 9:02am all the slots are filled 
Now we don’t even get that. You have to show up at the factory at 10:30pm and THEN they pick you or not. If you don’t get picked for that night, you go home, no pay. It’s irritating to spend $2.25 each way on a subway/bus to go to a place to get no work. So that’s $4.50 and when you’re out of work that’s a bit of change if you don’t get picked for two weeks straight.
And they often send you home after 4 hours. Oh great so now it’s 2:30am and you’re stuck out there. No busses run at 2:30pm. So you sit around till 5:30am when the busses start again.
Now I know I painted this grim. Temping just ain’t what it was.
It USED to be really nice. I used to be with Robert Half / Accountemps.
They would bend over backwards to find me work at my convenience and I got at least $15/hour on every job. You got paid every week (nice when you’re trying to catch up on bills). And these temp jobs I took when I wanted EXTRA money.
But with so many highly skilled people out of work, nothing is like it used to be.
So go ahead and try it. You might get lucky. 