One thing to watch out for with Boveda packs: they are filled with a salt compound. After repeated use the paper can wear and the salt can leak which will damage your humidor and your cigars.
As long as you are diligent, you should be OK.
There are two different kinds of beads on the market: silicate (e.g., Heartfelt Industries) and my HCM Beads, which are made of clay. Both work well, but I am biased toward the HCM Beads
No matter what you use, it can take a while to get your humidor dialed in. Make sure to properly season your humidor, and to periodically reseason in. Moisture in the wood keeps the joints tight and helps keep a good seal.