Pros Graphics,positive response from at least 60% of the gamers another are anti-Microsoft by default but graphics sound quality and the best thing is Xbox live which is ultimate for many as it looks like.
Cons It's totally right to mark the console as unreliable for the time being still they are not as unreliable as they used to be (When they were released), xbox live subscription gold pack cost around $40 for a year still not totally free
Summary Xbox 360 as a whole series changed what was thought about Microsoft in gaming industry especially in the hardware segment,there has been a lot that has changed in past 4 years of the xbox 360 regime Sony play-station 3 i think no chance for them they haven't been upto the task they could have thought of stiff competition from microsoft and wii and that has happened from microsoft it has been an all out Gamble if i say. Microsoft were aware of the fact that they may not match the popularity and trust sony had due thier world's best selling and most popular console PS2 so let's make a console diffrent from what sony is planning for next generation and that's exactly what they did. Total command over speed and power still very inexpensive and it's only something we need to hit the ground and keep the thing running.
Arcade console is always publicized as a beginner level console for gamers who don't have the experience of gaming on xbox previously.still it's very diffrent and not fully relaible and u can't expect it to run without problem for a year or two. there is substantial stress laid upon live gaming but for that you have to pay extra which is not something a gamer would like after spending $49.99 on a game not actually sold for so much but for the microsoft exclusive technology.
Still xbox 360 arcade is something i would recommend you as i too have it and i play it more than my PS3 because it's more fun.