No personal experience. Please consider the results of 582 people studied.
This is from”Brain A Journal of Neurology- Immunotherapy for Guillain-Barré syndrome: a systematic review” dated March 2007.
“…This synthesis of the results of all the randomized trials confirms that PE hastens recovery and shows that it also improves the outcome at 1 year without a significant effect on mortality or increase in adverse events…”
Later on in the article- “…Safety results In three trials with altogether 556 participants comparing PE with supportive care, details of complications were available. The RRs of serious adverse events (severe infections, blood pressure instability, pulmonary embolus or cardiac arrhythmias) were not significantly greater in the treated than the untreated participants…”
Finally, “…This systematic review not only confirms that PE hastens recovery from GBS and improves its long-term outcome in severely affected adult patients, but also provides the best quantitative estimates of these effects. In adult patients, the effect of IVIg is equivalent…”