This topic is all about understanding the real-life experiences of people who have used both one-piece and two-piece ostomy systems. The goal is to gather practical insights and advice from those who have tried both, to help others make informed decisions based on personal experiences rather than just product descriptions.

Here are some helpful insights and advice shared by members:

1. Reasons some prefer one-piece systems:
- They are simpler and quicker to change, with fewer parts to manage.
- Users feel more secure as there’s no risk of the pouch separating from the wafer.
- They are flatter, softer, and less bulky under clothing, offering better comfort and range of motion, which is great for activities like sports, travel, and swimming.
- Some brands, like Hollister and Coloplast, are noted for their soft rings and flexible closures, making them comfortable and easy to use.
- One-piece systems are available with Velcro or clip closures, and free samples can be requested online.

2. Reasons some prefer two-piece systems:
- They provide a clear view of the stoma when positioning the wafer, which is crucial for certain stoma types.
- The wafer can remain in place for several days, allowing for easy pouch changes without disturbing the baseplate.
- If the pouch gets damaged, only the outer pouch needs to be replaced.
- They are particularly convenient for those using closed-end pouches, reducing the need for frequent full appliance changes.
- Some users highlight the odor control benefits of certain two-piece systems, especially when used with flushable liners.

3. Tips and accessory ideas:
- Using stoma powder can help center a one-piece system by providing a contrasting color.
- Marking the wafer edge or abdomen with a marker can aid in accurate alignment.
- Custom baseplates or filling skin folds with ring pieces can improve fit.
- Adhesive-remover wipes can help reduce skin trauma, and some users find they can skip extra barrier strips once they achieve a good fit.
- Filters on pouches may clog after 8–10 days, so be prepared to change them sooner even if the wafer lasts longer.
- For those who irrigate, a two-piece system allows the wafer to stay on while attaching an irrigation sleeve as needed.

4. Product and brand references mentioned:
- Hollister one-piece urostomy system
- Coloplast SenSura one-piece with Velcro, Coloplast two-piece, and pouches with clip or Velcro closures
- Convatec two-piece and one-piece systems, with free samples available
- Coloplast/Convatec “Bravo” strips and barrier rings
- SenSura Mio two-piece and flushable pouch liners available at Walmart and Liberty Medical

Members emphasize that factors like stoma shape, location, lifestyle, and dexterity play a significant role in determining which system works best, so trying out different products is important.