Looking at a gulf stream conquest 255 with slide out and a 25lx heartland prowler no slide out. Rest of the features are about the same. Price the same. It's me my wife 2 girls 7 & 10. Plus two big do...
Slide problems are sometimes mentioned here. But no more so than plumbing issues, waste tank issues, water leaks, appliance issues, propane issues, etc. Probably even less so. For the most part slides are very reliable. And the extra room, especially for that many people and pets, are certainly worth more than the slight possibility you may have slide problems. IMHO.