I've done both MSP FO and CA reserve, and from what i've observed, it's all depends if you live in base or not. If you're lazy, you can bid airport PM reserve, and probably fly couple hi-speed once in a while, or if you like to fly a lot, you will fly a lot, i.e. 95 hr. a month. With 9E, you do need to know your rights and responsibility, because scheduling knows theirs, and will probably bet that you don't and intimidate you.
When you show up for a 5 day reserve stretch, be prepared to pack for 6 days, cuz you'll never know how a simple out and back turns into a full blown 29:59 6 days of fun.
If you know what you're entitled and what you're required to do, life ain't too bad. Just roll with the dice, try to play nice with sched, and you'll be fine. The good side of bidding reserve is knowing which days you'll have off, and it's generally easier to swap days off (staffing permitted
Hope it helped.